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Greenutra Resource Inc

Camptothecin Extract Main Contents: Camptothecin Plant Resource: Camptotheca acuminata CAS#: 7689-03-4 Main Specification: 92%, 95%,98%, 99% HPLC Appearance: Light Yellow Needle-like crystal Molecular Weight: C20H16N2O4 Molecul

Camptothecin Extract

Cas:7689-03-4

Min.Order:1 Kilogram

FOB Price: $3985.0

Type:Trading Company

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Dayang Chem (Hangzhou) Co.,Ltd.

As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch

(+)-Camptothecin Manufacturer/High quality/Best price/In stock

Cas:7689-03-4

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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Hangzhou Dingyan Chem Co., Ltd

Items Standard Result Appearance Yellowish crystals powder Conforms Assay(HPLC) 99%min

High purity Camptothecine with high quality and lowest pricre cas:7689-03-4

Cas:7689-03-4

Min.Order:1 Kilogram

FOB Price: $3950.0 / 4450.0

Type:Manufacturers

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Simagchem Corporation

Welcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our

High quality Camptothecin 98%, 99% supplier in China

Cas:7689-03-4

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

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Kono Chem Co.,Ltd

QuickDetails Type:HerbalExtract,pharmaceuticalingredients Variety:10-Hydroxycamptothecin Form:Powder …Appearance:yellow solid Storage:Preserve in tightly sealed,light and oxygen resistant containers Pa

(+)-Camptothecin

Cas:7689-03-4

Min.Order:1 Kilogram

FOB Price: $100.0

Type:Other

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Hebei yanxi chemical co.,LTD.

hebei yanxi chemical co., LTD who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do research and developm

Camptothecin 98%,99% CAS NO.7689-03-4

Cas:7689-03-4

Min.Order:1 Metric Ton

FOB Price: $1.0 / 3.0

Type:Manufacturers

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Wuhan Fortuna Chemical Co.,Ltd

Unique advantages for Camptothecin Cas 7689-03-4 Guaranteed purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:Pale yellow crystal powder Storage:Store at 2-8°C Package:100g,1kg/foil b

Hot selling Camptothecin Cas 7689-03-4 with high quality and favorable price

Cas:7689-03-4

Min.Order:100 Gram

Negotiable

Type:Trading Company

inquiry

Hangzhou JINLAN Pharm-Drugs Technology Co., Ltd

We can provide GMP validation service that complies with SFDA, FDA, WHO and EU EMPA.Excellent registration team could help us easlily to register our products in different countries.If you and your customer are interested in some products or need C

Camptothecine manufacturer with low price

Cas:7689-03-4

Min.Order:1 Gram

Negotiable

Type:Manufacturers

inquiry

Ality Chemical Corporation

The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi

Xi'an Xszo Chem Co., Ltd.

1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s

Factory Price API 99% (+)-Camptothecin 7689-03-4 GMP Manufacturer

Cas:7689-03-4

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

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Shanghai Seasonsgreen Chemical Co.,Ltd

Shanghai Seasonsgreen Chemical is a high-tech research and development, production, sale and custom synthesis set in one high-tech chemical products enterprises. Our sales and marketing division is located in Shanghai, serving international pharmaceu

lower price High quality (+)-Camptothecin

Cas:7689-03-4

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Manufacturers

inquiry

Henan Tianfu Chemical Co., Ltd.

TIANFUCHEM-- 7689-03-4--High purity (+)-Camptothecin in stock Our company was built in 2009 with an ISO certificate.In the past 10 years, we have grown up as a famous fine chemicals supplier in China And we had established stable business

TIANFUCHEM-- 7689-03-4--High purity (+)-Camptothecin in stock

Cas:7689-03-4

Min.Order:1 Metric Ton

FOB Price: $2000.0

Type:Lab/Research institutions

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

With our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufacturin

ISO Certified 100% Natural Camptotheca Extract CAS No. 7689-03-4

Cas:7689-03-4

Min.Order:1 Kilogram

FOB Price: $1.0 / 20.0

Type:Trading Company

inquiry

Zhuozhou Wenxi import and Export Co., Ltd

WITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et

New production CAS 7689-03-4 with best quality

Cas:7689-03-4

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Henan Sinotech Import&Export Corporation

Product Name: (+)-Camptothecin CAS: 7689-03-4 MF: C20H16N2O4 MW: 348.35 EINECS: 444-280-6 Appearance: Light yellow crystalline powder Appearance:Light yellow crystalline powder Storage:Store in cool and dry place, away from sun light. Package:25

(+)-Camptothecin

Cas:7689-03-4

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

inquiry

Hubei Langyou International Trading Co., Ltd

Advantages: Hubei XinRunde Chemical Co., Ltd is a renowned pharmaceutical manufacturer. We can offer high quality products at competitive price in quick delivery with 100% custom pass guaranteed. Never stop striving to offer our best s

Shanghai Upbio Tech Co.,Ltd

10-Hydroxy camptothecin in bulk supply Favorable price,high quality Bulk stock, prompt delivery Purity 99% Free sample Appearance:yellow solid Storage:dry and cool place Package:1kg/pack Application:Hydroxy camptothecin and its derivatives are u

(+)-Camptothecin/Camptothecin99%

Cas:7689-03-4

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Lab/Research institutions

inquiry

HANWAYS CHEMPHARM CO.,LIMITED

Hanways Chempharm Co., Limited, the former is Hubei Hanways Pharchem CO.,Limited, set up in 2009 in Wuhan, China. We specialize in sourcing and supplying APIs, pharmaceutical intermediates, and fine chemicals for worldwide markets. The founder has d

Camptothecine

Cas:7689-03-4

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Trading Company

inquiry

Xi'an Faithful Biotech Co., Ltd.

We are the manufacturers and suppliers of API in China, and warehouse in Germany and USA of California, which can quickly and safely deliver to your address 1.High quality and competitive price. 2.Free sample for your evaluation. 3.Promptly delivery

Baoji Guokang Healthchem co.,ltd

Our company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At prese

(+)-Camptothecin

Cas:7689-03-4

Min.Order:1 Gram

FOB Price: $20.0 / 25.0

Type:Trading Company

inquiry

Qingdao Beluga Import and Export Co., LTD

(+)-Camptothecin CAS: 7689-03-4 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organic intermed

(+)-Camptothecin CAS: 7689-03-4

Cas:7689-03-4

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Shandong Hanjiang Chemical Co., Ltd.

Hello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai

(+)-Camptothecin

Cas:7689-03-4

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Leader Biochemical Group

About Product Details

China Biggest Factory Manufacturer Supply Camptothecin CAS 7689-03-4

Cas:7689-03-4

Min.Order:500 Kilogram

FOB Price: $1.0 / 2.0

Type:Lab/Research institutions

inquiry

Henan Wentao Chemical Product Co., Ltd.

Henan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod

CAS NO.:7689-03-4

Cas:7689-03-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Lonwin Chemical Group Limited

(+)-Camptothecin CAS: 7689-03-4 Specification Appearance & Physical State light yellow crystal powde Density 1.51 g/cm3 Boiling Point 264ºC Melting Point 260ºC Flash Point 41

Factory supply (+)-Camptothecin

Cas:7689-03-4

Min.Order:1 Kilogram

Negotiable

Type:Other

inquiry

Changchun Artel lmport and Export trade company

1.strict raw material selection 2.mature production process 3.perfect quality control system 4.intimate servcie 5.competitive price 6.downstream customization 7.has a number of highly qualified engineers and experts to provide guida

Beat price/Anti-cancer Camptothecin 98% 99%

Cas:7689-03-4

Min.Order:100 Gram

Negotiable

Type:Trading Company

inquiry

Xiamen Hisunny Chemical Co.,Ltd

Best quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia

(+)-Camptothecin

Cas:7689-03-4

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

HANGZHOU TIANYE CHEMICALS CO., LTD.

We product this chemical more than 10 years . We are very experience to export it to many countries, Our superior & stable quality , competitive price gain warm reception from our customers. Specification : 1,6-DIHYDROXY-7-GLUCURONOSYLFLAVO

(+)-Camptothecin

Cas:7689-03-4

Min.Order:1 Gram

Negotiable

Type:Trading Company

inquiry

Triumph International Development Limilted

Lorcaserin(856681-05-5)is an orally administered agent and a selective 5-HT2C receptor agonist for the treatment of obesity. It had been approved for marketing in US by FDA on 27 June in 2012. In clinical studies, lorcaserin h

Camptothecine

Cas:7689-03-4

Min.Order:100 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Afine Chemicals Limited

Our Services 1. New Molecules R&D 2. Own test center HPLC NMR GC LC-MS 3. API and Intermediates from China reputed manufacturers 4. Documents support COA MOA MSDS DMF open part Our advantages 1. Government awarded company. Top 100 enter

(+)-Camptothecin

Cas:7689-03-4

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

C29H39N3O3Si2
1085755-35-6

C29H39N3O3Si2

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With hydrogenchloride In diethyl ether; ethanol Pinner reaction; Heating;92%
camptothecin 20-(2-bromo)-n-butyrate
935761-84-5

camptothecin 20-(2-bromo)-n-butyrate

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With methanol; ammonia In tetrahydrofuran for 12h; Product distribution / selectivity;89%
(E)-N-(2-aminobenzylidene)-4-methylaniline
55857-35-7

(E)-N-(2-aminobenzylidene)-4-methylaniline

(4S)-4-ethyl-7,8-dihydro-4-hydroxy-1H-pyrano[3,4-f]indolizine-3,6,10(4H)-trione
110351-94-5

(4S)-4-ethyl-7,8-dihydro-4-hydroxy-1H-pyrano[3,4-f]indolizine-3,6,10(4H)-trione

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With toluene-4-sulfonic acid In toluene Heating; 1) 30 min, 2) 3 h;84.4%
With toluene-4-sulfonic acid In toluene Heating; 1.) 30 min, 2.) 3 h with Dean-Stark trap;84%
With toluene-4-sulfonic acid In toluene73%
With toluene-4-sulfonic acid 1.) toluene, reflux, 30 min, 2.) toluene, reflux, 3 h; Yield given. Multistep reaction;
4-ethyl-1,12-dihydro-14H-pyrano[3',4':6,7indolizino[1,2-b]]quinolin-14-one
841276-70-8

4-ethyl-1,12-dihydro-14H-pyrano[3',4':6,7indolizino[1,2-b]]quinolin-14-one

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
Stage #1: 4-ethyl-1,12-dihydro-14H-pyrano[3',4':6,7indolizino[1,2-b]]quinolin-14-one With potassium osmate; hydroquinindine-2,5-diphenyl-4,6-pyrimidinediyl diether; methanesulfonamide; potassium carbonate; potassium hexacyanoferrate(III) In water; tert-butyl alcohol at 0℃;
Stage #2: With iodine; calcium carbonate In methanol; water at 40℃;
83%
Multi-step reaction with 2 steps
1: K2CO3; MeSO2NH2; K3Fe(CN)6 / OsO4; (DHQD)2-Py / 2-methyl-propan-2-ol; H2O / 7 h / 0 °C
2: I2; CaCO3 / methanol; H2O / 24 h / 20 °C
View Scheme
With methanol; iodine; calcium carbonate In water Sharpless Dihydroxylation;
Multi-step reaction with 2 steps
1: potassium carbonate; hydroquinidine (2,5-diphenyl-4,6-pyrimidinediyl) diether; potassium hexacyanoferrate(III); potassium osmate(VI) dihydrate; methanesulfonamide / water; tert-butyl alcohol / 72 h / 0 °C / Inert atmosphere
2: iodine; calcium carbonate / methanol; water / 20 h / 40 °C / Inert atmosphere
View Scheme
(S)-O-methylcamptothecin
916236-87-8

(S)-O-methylcamptothecin

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With hydrogen bromide for 0.416667h; Heating;81%
PHF-succinate

PHF-succinate

20-O-(glycyl)camptothecin trifluoroacetic acid salt

20-O-(glycyl)camptothecin trifluoroacetic acid salt

A

camptothecin-20-(N-succinamidoglycinate)
672333-51-6

camptothecin-20-(N-succinamidoglycinate)

B

camptothecin-PHF conjugate

camptothecin-PHF conjugate

C

camptothecin-20-(N-succinimidoglycinate)
847928-87-4

camptothecin-20-(N-succinimidoglycinate)

D

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In water; N,N-dimethyl-formamide; acetonitrile at -2 - 20℃; for 3.5h; pH=5.9 - 6.0;A n/a
B 80%
C n/a
D n/a
formaldehyd
50-00-0

formaldehyd

7-((2R,4S)-2-tert-butyl-4-ethyl-5-oxo-1,3-dioxolan-4-yl)indolizino[1,2-b]quinolin-9(11H)-one

7-((2R,4S)-2-tert-butyl-4-ethyl-5-oxo-1,3-dioxolan-4-yl)indolizino[1,2-b]quinolin-9(11H)-one

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With hydrogenchloride; acetic acid In 1,4-dioxane; water at 90℃; for 19h;80%
(4S)-4-ethyl-7,8-dihydro-4-hydroxy-1H-pyrano[3,4-f]indolizine-3,6,10(4H)-trione
110351-94-5

(4S)-4-ethyl-7,8-dihydro-4-hydroxy-1H-pyrano[3,4-f]indolizine-3,6,10(4H)-trione

2-aminobenzaldehyde
529-23-7

2-aminobenzaldehyde

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With chloro-trimethyl-silane In N,N-dimethyl-formamide at 100℃; Friedlaender Quinoline Synthesis;78%
With toluene-4-sulfonic acid In toluene for 2h; Heating;57%
Camptothecin 1-oxide
86639-48-7

Camptothecin 1-oxide

A

(S)-10-hydroxycamptothecin
19685-09-7

(S)-10-hydroxycamptothecin

B

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With sulfuric acid In 1,4-dioxane for 0.5h; Irradiation;A 75%
B 11.5%
1,2,6,7-tetrahydrocamptothecin
53544-22-2, 142696-57-9, 142696-58-0

1,2,6,7-tetrahydrocamptothecin

A

(S)-10-hydroxycamptothecin
19685-09-7

(S)-10-hydroxycamptothecin

B

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With lead(IV) acetate; trifluoroacetic acid for 0.25h; Ambient temperature;A 73.5%
B 12%
phenyl isocyanate
1197040-29-1

phenyl isocyanate

(S)-4-ethyl-4-hydroxy-6-iodo-7-(prop-2-yn-1-yl)-1,7-dihydro-3H-pyrano[3,4-c]pyridino-3,8(4H)-dione
174092-80-9

(S)-4-ethyl-4-hydroxy-6-iodo-7-(prop-2-yn-1-yl)-1,7-dihydro-3H-pyrano[3,4-c]pyridino-3,8(4H)-dione

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With tris(2,2-bipyridine)ruthenium(II) hexafluorophosphate; potassium carbonate; triethylamine In acetonitrile at 20℃; for 24h; Inert atmosphere; Schlenk technique; Irradiation;73%
With hexamethyldistannane In benzene at 70℃; for 5h; Irradiation;63%
With hexamethyldistannane In benzene21.8 mg (63%)
camptothecin 20-(4-bromo)-n-butyrate
935761-80-1

camptothecin 20-(4-bromo)-n-butyrate

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With methanol; ammonia In tetrahydrofuran for 12h; Product distribution / selectivity;72%
4-ethyl-1,12-dihydro-14H-pyrano[3',4':6,7indolizino[1,2-b]]quinolin-14-one
841276-70-8

4-ethyl-1,12-dihydro-14H-pyrano[3',4':6,7indolizino[1,2-b]]quinolin-14-one

A

(R)-4-ethyl-4-hydroxy-1,12-dihydro-14H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14-(4H)-dione
110351-92-3

(R)-4-ethyl-4-hydroxy-1,12-dihydro-14H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14-(4H)-dione

B

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
Stage #1: 4-ethyl-1,12-dihydro-14H-pyrano[3',4':6,7indolizino[1,2-b]]quinolin-14-one With methanesulfonamide; potassium carbonate; potassium hexacyanoferrate(III); hydroquinindine-2,5-diphenyl-4,6-pyrimidinediyl diether; potassium dioxotetrahydroxoosmate(VI) In water; tert-butyl alcohol at 0℃; for 40h; Sharpless dihydroxylation;
Stage #2: With iodine; calcium carbonate In methanol; water at 40℃; for 15h; Further stages.;
A n/a
B 71%
N-(2-(1,3-dioxolan-2-yl))phenylamine
26908-34-9

N-(2-(1,3-dioxolan-2-yl))phenylamine

(4S)-4-ethyl-7,8-dihydro-4-hydroxy-1H-pyrano[3,4-f]indolizine-3,6,10(4H)-trione
110351-94-5

(4S)-4-ethyl-7,8-dihydro-4-hydroxy-1H-pyrano[3,4-f]indolizine-3,6,10(4H)-trione

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With toluene-4-sulfonic acid In toluene for 3h; Heating;69%
N-(2-(1,3-dioxolan-2-yl))phenylamine
26908-34-9

N-(2-(1,3-dioxolan-2-yl))phenylamine

4'-ethyl-1',4',7',8'-tetrahydro-4'-hydroxy-3'H,10'H-spiro[1,3-dioxolane-2,6'-pyrano[3,4-f]indolizine]-3',10'-dione
102978-41-6

4'-ethyl-1',4',7',8'-tetrahydro-4'-hydroxy-3'H,10'H-spiro[1,3-dioxolane-2,6'-pyrano[3,4-f]indolizine]-3',10'-dione

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With hydrogenchloride In ethanol; water for 4h; Friedlaender synthesis; Reflux;66%
(S)-7-[(2-chloroquinolin-3-yl)methyl]-4-ethyl-4-hydroxy-1Hpyrano[3,4-c]pyridine-3,8(4H,7H)-dione
390824-47-2

(S)-7-[(2-chloroquinolin-3-yl)methyl]-4-ethyl-4-hydroxy-1Hpyrano[3,4-c]pyridine-3,8(4H,7H)-dione

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With bis(triphenylphosphine) palladium (Il) acetate; potassium acetate In acetonitrile at 100℃; for 12h; Heck reaction;64%
With bis(acetato)bis(triphenylphosphine)palladium(0); potassium acetate In acetonitrile at 100℃; for 12h; Heck reaction; Inert atmosphere; optical yield given as %ee;64%
9-amino-20(S)-camptothecin
91421-43-1

9-amino-20(S)-camptothecin

A

10-hydroxycamptothecin
67656-30-8

10-hydroxycamptothecin

B

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With sulfuric acid; sodium nitrite In water for 1h; Heating;A 60%
B n/a
(-)-O,21-dihydrocamptothecin
210563-62-5

(-)-O,21-dihydrocamptothecin

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With iodine; calcium carbonate In methanol; water at 20℃; for 96h;60%
With iodine; calcium carbonate In methanol; water at 40℃; for 24h; Inert atmosphere; optical yield given as %ee;
With iodine; calcium carbonate In methanol; water at 40℃; for 20h; Inert atmosphere;59 mg
tert-butyldimethylsilane
29681-57-0

tert-butyldimethylsilane

Camptothecin 1-oxide
86639-48-7

Camptothecin 1-oxide

A

camptothecin
7689-03-4

camptothecin

B

(20S)-7-tert-butyldimethylsilylcamptothecin
203173-70-0

(20S)-7-tert-butyldimethylsilylcamptothecin

C

(20S)-12-tert-butyldimethylsilylcamptothecin

(20S)-12-tert-butyldimethylsilylcamptothecin

Conditions
ConditionsYield
With di-tert-butyl peroxide; triisopropylsilanethiolA 60%
B 20%
C n/a
(S)-7-(2-Bromo-quinolin-3-ylmethyl)-4-ethyl-4-hydroxy-1,7-dihydro-4H-pyrano[3,4-c]pyridine-3,8-dione
146596-04-5

(S)-7-(2-Bromo-quinolin-3-ylmethyl)-4-ethyl-4-hydroxy-1,7-dihydro-4H-pyrano[3,4-c]pyridine-3,8-dione

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With palladium diacetate; tetrabutylammomium bromide; potassium acetate In N,N-dimethyl-formamide at 90℃; for 3h;59%
With 2,2'-azobis(isobutyronitrile); tri-n-butyl-tin hydride In toluene Heating;55%
With palladium diacetate; potassium carbonate; triphenylphosphine In toluene for 16h; Heck reaction; Reflux; Inert atmosphere;
camptothecin 20-(5-bromo)-n-pentanoate
935761-81-2

camptothecin 20-(5-bromo)-n-pentanoate

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With methanol; ammonia In tetrahydrofuran for 120h; Product distribution / selectivity;59%
4-ethyl-1,12-dihydro-14-H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14-(4H)-dione
34141-35-0

4-ethyl-1,12-dihydro-14-H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14-(4H)-dione

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
Stage #1: 4-ethyl-1,12-dihydro-14-H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14-(4H)-dione With lithium hexamethyldisilazane In tetrahydrofuran at -78℃; for 0.5h; enolization;
Stage #2: With (+)-(2S,8aS)-(camphorylsulfonyl)oxaziridine In tetrahydrofuran at -78℃; for 3h; Substitution; asymmetric hydroxylation;
53%
(S)-4-ethyl-4-hexanoyloxy-1,12-dihydro-4H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14-dione
72594-33-3

(S)-4-ethyl-4-hexanoyloxy-1,12-dihydro-4H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14-dione

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With methanol; ammonia In tetrahydrofuran for 120h; Product distribution / selectivity;42%
acetic acid
64-19-7

acetic acid

1,2,6,7-tetrahydrocamptothecin
53544-22-2, 142696-57-9, 142696-58-0

1,2,6,7-tetrahydrocamptothecin

A

(S)-10-hydroxycamptothecin
19685-09-7

(S)-10-hydroxycamptothecin

B

(S)-9-acetoxy-4-ethyl-4-hydroxy-1,12-dihydro-4H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14-dione
19685-11-1

(S)-9-acetoxy-4-ethyl-4-hydroxy-1,12-dihydro-4H-pyrano[3',4':6,7]indolizino[1,2-b]quinoline-3,14-dione

C

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With lead(IV) acetate for 0.25h; Ambient temperature;A 30.9%
B 20.8%
C 8.1%
phenyl isocyanate
1197040-29-1

phenyl isocyanate

(S)-4-Ethyl-4-hydroxy-6-iodo-3-oxo-7-allyl-1H-pyrano[3,4-c]-8-pyridone
202745-20-8

(S)-4-Ethyl-4-hydroxy-6-iodo-3-oxo-7-allyl-1H-pyrano[3,4-c]-8-pyridone

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With hexamethyldistannane In benzene Irradiation;21%
camptothecin-21-isopropylamide
69203-72-1

camptothecin-21-isopropylamide

A

camptothecin
7689-03-4

camptothecin

B

N-Isopropyl-17-hydroxycamptothecin Lactam
118514-62-8

N-Isopropyl-17-hydroxycamptothecin Lactam

C

N-Isopropyl-17-oxocamptothecin Lactam
118514-63-9

N-Isopropyl-17-oxocamptothecin Lactam

Conditions
ConditionsYield
With manganese(IV) oxide In dichloromethane for 72h; Ambient temperature;A 3.4%
B 8.1%
C 12%
camtothecin-20-O-methyl carbonate
56581-35-2

camtothecin-20-O-methyl carbonate

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With lithium hydrogensulfide In N,N,N,N,N,N-hexamethylphosphoric triamide
18,19-dehydrocamptothecin

18,19-dehydrocamptothecin

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With hydrogen; palladium on activated charcoal In methanol for 0.333333h; Ambient temperature;
With hydrogen; palladium 10% on activated carbon In 1,4-dioxane; methanol at 20℃; for 1 - 5h;
camptothecin
34079-22-6

camptothecin

camptothecin
7689-03-4

camptothecin

Conditions
ConditionsYield
With Britton-Robinson's buffer pH 6.0; water at 37℃; Equilibrium constant; Kinetics; Thermodynamic data; Ea, A, var. pH, var. temp., var. time;
With PBS buffer at 37℃; pH=7.4; Kinetics;
benzyloxyacetic acid
30379-55-6

benzyloxyacetic acid

camptothecin
7689-03-4

camptothecin

Benzyloxy-acetic acid (S)-4-ethyl-3,13-dioxo-3,4,12,13-tetrahydro-1H-2-oxa-6,12a-diaza-dibenzo[b,h]fluoren-4-yl ester

Benzyloxy-acetic acid (S)-4-ethyl-3,13-dioxo-3,4,12,13-tetrahydro-1H-2-oxa-6,12a-diaza-dibenzo[b,h]fluoren-4-yl ester

Conditions
ConditionsYield
With dmap; diisopropyl-carbodiimide In dichloromethane at 20℃; for 12h;100%
With dmap In dichloromethane for 12h;100%
With dmap; diisopropyl-carbodiimide In dichloromethane at 20℃; for 12h;100%
With dmap; bis-2-propyl carbonate In dichloromethane at 0℃; for 3h;65%
N-(tert-butoxycarbonyl)-glycine N-carboxyanhydride
142955-50-8

N-(tert-butoxycarbonyl)-glycine N-carboxyanhydride

camptothecin
7689-03-4

camptothecin

camptothecin N-tert-butyoxylcarboxylglycine ester
204133-72-2

camptothecin N-tert-butyoxylcarboxylglycine ester

Conditions
ConditionsYield
With dmap In dichloromethane for 8h; Heating;100%
camptothecin
7689-03-4

camptothecin

20(S)-camptothecin sodium salt
25387-67-1

20(S)-camptothecin sodium salt

Conditions
ConditionsYield
With sodium hydroxide; water at 50℃; for 1h;100%
With sodium hydroxide; water at 50℃; for 2h;
propionic acid anhydride
123-62-6

propionic acid anhydride

camptothecin
7689-03-4

camptothecin

20-O-camptothecin propionate ester

20-O-camptothecin propionate ester

Conditions
ConditionsYield
sulfuric acid In ethanol at 80 - 120℃; for 14h;99%
With pyridine at 40℃; for 48h;94%
With pyridine at 35 - 45℃; for 48h;94%
t-BuOCO-Gly-Sar-OH
133498-97-2

t-BuOCO-Gly-Sar-OH

camptothecin
7689-03-4

camptothecin

(tert-butoxycarbonylaminoacetyl-methyl-amino)-acetic acid (S)-4-ethyl-3,13-dioxo-3,4,12,13-tetrahydro-1H-2-oxa-6,12a-diaza-dibenzo[b,h]fluoren-4-yl ester

(tert-butoxycarbonylaminoacetyl-methyl-amino)-acetic acid (S)-4-ethyl-3,13-dioxo-3,4,12,13-tetrahydro-1H-2-oxa-6,12a-diaza-dibenzo[b,h]fluoren-4-yl ester

Conditions
ConditionsYield
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20 - 25℃; for 15h;99%
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 15h;99%
camptothecin
7689-03-4

camptothecin

(-)-O,21-dihydrocamptothecin
210563-62-5

(-)-O,21-dihydrocamptothecin

Conditions
ConditionsYield
With potassium borohydride In methanol at 20℃; Inert atmosphere;99%
With potassium borohydride In methanol at 20℃; for 1h;98.4%
With sodium tetrahydroborate In methanol at 20℃;90%
camptothecin
7689-03-4

camptothecin

3-fluoro-4-cyanophenoxyacetic acid
401478-77-1

3-fluoro-4-cyanophenoxyacetic acid

camptothecin-20-O-4-cyano-3-fluorophenoxyacetate
401478-65-7

camptothecin-20-O-4-cyano-3-fluorophenoxyacetate

Conditions
ConditionsYield
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 20h;98.7%
camptothecin
7689-03-4

camptothecin

(R,S)-2-chloropropionic acid
598-78-7

(R,S)-2-chloropropionic acid

camptothecin-20-O-2-chloropropionate
1112310-87-8

camptothecin-20-O-2-chloropropionate

Conditions
ConditionsYield
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 2h;98.1%
n-heptanoic anhydride
626-27-7

n-heptanoic anhydride

camptothecin
7689-03-4

camptothecin

camptothecin-20-O-heptanoate

camptothecin-20-O-heptanoate

Conditions
ConditionsYield
With pyridine at 40℃; for 48h;98%
With pyridine98%
triethylsilyl chloride
994-30-9

triethylsilyl chloride

camptothecin
7689-03-4

camptothecin

20(S)-O-triethylsilylcamptothecin
1004264-93-0

20(S)-O-triethylsilylcamptothecin

Conditions
ConditionsYield
With 1H-imidazole; dmap In N,N-dimethyl-formamide at 20℃; for 60h;98%
With 1H-imidazole; dmap In N,N-dimethyl-formamide at 20℃; Inert atmosphere;98%
With 1H-imidazole; dmap In N,N-dimethyl-formamide for 46h; Inert atmosphere;
Stage #1: camptothecin With 1H-imidazole In N,N-dimethyl-formamide for 0.166667h; Inert atmosphere;
Stage #2: triethylsilyl chloride With dmap In N,N-dimethyl-formamide
With 1H-imidazole; dmap In N,N-dimethyl-formamide for 46.1667h;
succinic acid anhydride
108-30-5

succinic acid anhydride

camptothecin
7689-03-4

camptothecin

(S)-4-((4-ethyl-3,14-dioxo-3,4,12,14-tetrahydro-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinolin-4-yl)oxy)-4-oxobutanoic acid
330155-39-0

(S)-4-((4-ethyl-3,14-dioxo-3,4,12,14-tetrahydro-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinolin-4-yl)oxy)-4-oxobutanoic acid

Conditions
ConditionsYield
With 1,8-diazabicyclo[5.4.0]undec-7-ene In dichloromethane at 0 - 20℃; for 4h;98%
With 1,8-diazabicyclo[5.4.0]undec-7-ene In dichloromethane at 0 - 20℃; for 4h; Inert atmosphere;98%
With 1,8-diazabicyclo[5.4.0]undec-7-ene In dichloromethane for 4h; Inert atmosphere; Cooling with ice;90%
N-tert-butoxycarbonyl-L-norvaline
53308-95-5

N-tert-butoxycarbonyl-L-norvaline

camptothecin
7689-03-4

camptothecin

CPT-Nva-Boc
1204387-78-9

CPT-Nva-Boc

Conditions
ConditionsYield
With dmap; diisopropyl-carbodiimide In dichloromethane at 0 - 20℃;98%
6-(tert-butoxycarbonylamino)hexanoic acid
6404-29-1

6-(tert-butoxycarbonylamino)hexanoic acid

camptothecin
7689-03-4

camptothecin

(S)-4-ethyl-3,14-dioxo-3,4,12,14-tetrahydro-1H-pyrano[3′,4′:6,7]indolizino[1,2-b]quinolin-4-yl 6-((tert-butoxycarbonyl)amino)hexanoate

(S)-4-ethyl-3,14-dioxo-3,4,12,14-tetrahydro-1H-pyrano[3′,4′:6,7]indolizino[1,2-b]quinolin-4-yl 6-((tert-butoxycarbonyl)amino)hexanoate

Conditions
ConditionsYield
With dmap; N-(3-dimethylaminopropyl)-N-ethylcarbodiimide In N,N-dimethyl-formamide at 20℃; for 12h; Inert atmosphere;98%
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In N,N-dimethyl-formamide at 20℃; Inert atmosphere;98%
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 25℃; for 12h;55%
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 12h;55%
3-phthalimidopropanoic acid
3339-73-9

3-phthalimidopropanoic acid

camptothecin
7689-03-4

camptothecin

3-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-propionic acid 4-ethyl-3,13-dioxo-3,4,12,13-tetrahydro-1H-2-oxa-6,12a-diaza-dibenzo[b,h]fluoren-4-yl ester

3-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-propionic acid 4-ethyl-3,13-dioxo-3,4,12,13-tetrahydro-1H-2-oxa-6,12a-diaza-dibenzo[b,h]fluoren-4-yl ester

Conditions
ConditionsYield
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 7h;97.5%
chloroacetic acid
79-11-8

chloroacetic acid

camptothecin
7689-03-4

camptothecin

camptothecin-20-O-chloroacetate
7688-65-5

camptothecin-20-O-chloroacetate

Conditions
ConditionsYield
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 2h;97.5%
Octanoic acid
124-07-2

Octanoic acid

camptothecin
7689-03-4

camptothecin

10-octanoyloxy-7-ethylcamptothecin

10-octanoyloxy-7-ethylcamptothecin

Conditions
ConditionsYield
With dmap; 2-chloro-1-methyl-pyridinium iodide In N,N-dimethyl acetamide at 50℃;97.4%
bromoacetic acid
79-08-3

bromoacetic acid

camptothecin
7689-03-4

camptothecin

camptothecin-20 (S)-O-bromoacetate

camptothecin-20 (S)-O-bromoacetate

Conditions
ConditionsYield
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 2h;97%
With dmap In dichloromethane for 5h; Cooling with ice;71%
In dichloromethane for 5h; Cooling with ice;71%
With dmap; bis-2-propyl carbonate In dichloromethane at 0℃; for 4h;67%
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 2h;
N-[(tert-butoxy)carbonyl]piperidine-4-carboxylic acid
84358-13-4

N-[(tert-butoxy)carbonyl]piperidine-4-carboxylic acid

camptothecin
7689-03-4

camptothecin

Boc-Inp-CPT
1185274-90-1

Boc-Inp-CPT

Conditions
ConditionsYield
Stage #1: N-[(tert-butoxy)carbonyl]piperidine-4-carboxylic acid With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane for 0.5h;
Stage #2: camptothecin In dichloromethane at 20℃; for 18h;
97%
Boc-Abu
34306-42-8

Boc-Abu

camptothecin
7689-03-4

camptothecin

CPT-Abu-Boc
1204387-77-8

CPT-Abu-Boc

Conditions
ConditionsYield
With dmap; diisopropyl-carbodiimide In dichloromethane at 0 - 20℃;97%
camptothecin
7689-03-4

camptothecin

Camptothecin 1-oxide
86639-48-7

Camptothecin 1-oxide

Conditions
ConditionsYield
With sodium perborate; acetic acid at 30 - 90℃; for 0.833333h;96.46%
With dihydrogen peroxide; acetic acid at 70 - 80℃; for 3.5h;90.6%
With dihydrogen peroxide In acetic acid at 70 - 80℃; for 3.5h;90.6%
tert.-butylhydroperoxide
75-91-2

tert.-butylhydroperoxide

camptothecin
7689-03-4

camptothecin

(S)-7-methylcamptothecin
78287-26-0

(S)-7-methylcamptothecin

Conditions
ConditionsYield
Stage #1: camptothecin With sulfuric acid; formamide; trifluoroacetic acid; iron(II) sulfate In water at 5℃;
Stage #2: tert.-butylhydroperoxide In water at 0℃; for 1h;
96.1%
With sulfuric acid; iron(II) sulfate In water; acetic acid for 1h; Ambient temperature;79%
camptothecin
7689-03-4

camptothecin

8-methyl-7-propionylindolizino[1,2-b]quinoline-9(11H)-one
55854-89-2

8-methyl-7-propionylindolizino[1,2-b]quinoline-9(11H)-one

Conditions
ConditionsYield
With boron trifluoride diethyl etherate for 0.116667h; Ambient temperature; microwave irradiation;96%
for 0.116667h; Irradiation;96%
With sodium azide; 18-crown-6 ether In N,N-dimethyl-formamide at 110 - 120℃; for 18h; Mechanism;94%
camptothecin
7689-03-4

camptothecin

(R)-2-tert-Butoxycarbonylamino-propionic acid (S)-4-ethyl-3,13-dioxo-3,4,12,13-tetrahydro-1H-2-oxa-6,12a-diaza-dibenzo[b,h]fluoren-4-yl ester

(R)-2-tert-Butoxycarbonylamino-propionic acid (S)-4-ethyl-3,13-dioxo-3,4,12,13-tetrahydro-1H-2-oxa-6,12a-diaza-dibenzo[b,h]fluoren-4-yl ester

Conditions
ConditionsYield
With dmap; scandium tris(trifluoromethanesulfonate); diisopropyl-carbodiimide In dichloromethane at -8 - 20℃; for 2.5h;96%
BOC-glycine
4530-20-5

BOC-glycine

camptothecin
7689-03-4

camptothecin

camptothecin N-tert-butyoxylcarboxylglycine ester
204133-72-2

camptothecin N-tert-butyoxylcarboxylglycine ester

Conditions
ConditionsYield
With dmap; diisopropyl-carbodiimide In dichloromethane at 0 - 20℃;96%
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 2h;94.8%
With dmap; diisopropyl-carbodiimide In dichloromethane at 0℃; for 1h;86.2%
propionaldehyde
123-38-6

propionaldehyde

camptothecin
7689-03-4

camptothecin

7-ethylcamptothecin
78287-27-1

7-ethylcamptothecin

Conditions
ConditionsYield
With sulfuric acid; dihydrogen peroxide; acetic acid at -5 - 5℃; for 0.166667h; Temperature;95.4%
With sulfuric acid; dihydrogen peroxide; iron(II) sulfate In water for 3h; Ambient temperature;77%
With sulfuric acid; dihydrogen peroxide; iron(II) sulfate for 3h; Ambient temperature;77%
camptothecin
7689-03-4

camptothecin

3-[4-(4-fluorophenyl)-1-piperazinyl]propionic acid
435270-82-9

3-[4-(4-fluorophenyl)-1-piperazinyl]propionic acid

3-[4-(4-fluoro-phenyl)-piperazin-1-yl]-propionic acid 4-ethyl-3,13-dioxo-3,4,12,13-tetrahydro-1H-2-oxa-6,12a-diaza-dibenzo[b,h]fluoren-4-yl ester

3-[4-(4-fluoro-phenyl)-piperazin-1-yl]-propionic acid 4-ethyl-3,13-dioxo-3,4,12,13-tetrahydro-1H-2-oxa-6,12a-diaza-dibenzo[b,h]fluoren-4-yl ester

Conditions
ConditionsYield
With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 7h;95.2%
(E)-but-2-enoic acid
107-93-7

(E)-but-2-enoic acid

camptothecin
7689-03-4

camptothecin

camptothecin-20-O-crotonate
194414-77-2

camptothecin-20-O-crotonate

Conditions
ConditionsYield
With dmap; dicyclohexyl-carbodiimide In dichloromethane Ambient temperature;95%
L-N-Boc-Ala
15761-38-3

L-N-Boc-Ala

camptothecin
7689-03-4

camptothecin

20-O-(N-(tert-butoxycarbonyl)alanyl)camptothecin
204133-34-6

20-O-(N-(tert-butoxycarbonyl)alanyl)camptothecin

Conditions
ConditionsYield
With dmap; scandium tris(trifluoromethanesulfonate); diisopropyl-carbodiimide In dichloromethane at -8 - 20℃; for 2.5h;95%
With dmap; diisopropyl-carbodiimide In dichloromethane at 0 - 20℃;94%
With dmap; diisopropyl-carbodiimide In dichloromethane at 0℃; for 1h;86.2%
(E)-3-phenylacrylic acid
140-10-3

(E)-3-phenylacrylic acid

camptothecin
7689-03-4

camptothecin

(E)-3-Phenyl-acrylic acid (S)-4-ethyl-3,13-dioxo-3,4,12,13-tetrahydro-1H-2-oxa-6,12a-diaza-dibenzo[b,h]fluoren-4-yl ester

(E)-3-Phenyl-acrylic acid (S)-4-ethyl-3,13-dioxo-3,4,12,13-tetrahydro-1H-2-oxa-6,12a-diaza-dibenzo[b,h]fluoren-4-yl ester

Conditions
ConditionsYield
With dmap; dicyclohexyl-carbodiimide In dichloromethane Ambient temperature;95%
1H-benzo[d][1,2,3]triazol-1-yl (2-(pyridin-2-yldisulfaneyl)ethyl) carbonate
913168-10-2

1H-benzo[d][1,2,3]triazol-1-yl (2-(pyridin-2-yldisulfaneyl)ethyl) carbonate

camptothecin
7689-03-4

camptothecin

camptothecin-(4-pyridyldisulfanyl)ethyl carbonate
914499-21-1

camptothecin-(4-pyridyldisulfanyl)ethyl carbonate

Conditions
ConditionsYield
With dmap; triethylamine In dichloromethane at 20℃;95%

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