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Shanghai Yuanye Bio-Technology Co., Ltd.

Known for its best quality and competitve price, this chemicals we offered is widely appreciated by our customers.Appearance:White powder Storage:keep sealed and keep from direct light Package:According client's requirements Application:pharmaceutica

24-Epicastasterone manufacturer

Cas:78821-43-9

Min.Order:0

Negotiable

Type:Trading Company

inquiry

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

Epibrassinolide Manufacturer/High quality/Best price/In stock

Cas:78821-43-9

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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GIHI CHEMICALS CO.,LIMITED

Product Name:24-Epibrassinolide CAS No.: 78821-43-9 Chemical formula: C28H48O6 Molecular weight:480.68 Item Specification Appearance off-white crystalline powder Water

Biggest manufacturer of 24-Epibrassinolide

Cas:78821-43-9

Min.Order:1 Gram

FOB Price: $10.0

Type:Lab/Research institutions

inquiry

Henan Allgreen Chemical Co.,Ltd

high quality Appearance:White or off-white Solid Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea Port:shanghai

Epibrassinolide

Cas:78821-43-9

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

inquiry

shanghai Tauto Biotech Co., Ltd

20-year experience in Phytochemicals Each product has passed very strict tests (NMR\MS\HPLC) Agents in 13 countries Certified by ISO 9001:2015 quality management system Leader Supplier of Botanical Reference Materials in China 3000 kinds of

24-Epibrassinolide

Cas:78821-43-9

Min.Order:10 Milligram

Negotiable

Type:Manufacturers

inquiry

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

huge stock TC Plant Growth Regulator Epibrassinolide 78821-43-9 GLP Manufacturer

Cas:78821-43-9

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

inquiry

COLORCOM LTD.

Colorcom is a global leader in industrial chemical manufacturing and is continuously innovating and transforming to exceed client expectations and industry standards. Colorcom prides itself on superior customer and technical focus, while focusing on

24-Epibrassinolide

Cas:78821-43-9

Min.Order:1 Metric Ton

Negotiable

Type:Manufacturers

inquiry

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 Epibrassinolide

Cas:78821-43-9

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Manufacturers

inquiry

Chemwill Asia Co., Ltd.

Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block

24-(R)-Epibrassinolide

Cas:78821-43-9

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Hubei DiBo chemical co., LTD

Name:Epibrassinolide The alias:22R,23R,24R-2ALPHA,3ALPHA,22,28-TETRAHYDROXY-B-HOMO-7-OXA-5ALPHA-ERGOSTA-6-ONE; CAS NO:78821-43-9 Molecular formula:C28H48O6 Molecular weight:480.68 Product Quality 12 years of chemical raw materials Mature o

Epibrassinolide/CAS:78821-43-9/High quality

Cas:78821-43-9

Min.Order:25 Kilogram

FOB Price: $1.0 / 2.0

Type:Other

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

Our advantages: 1. All inquiries will be replied within 12 hours. 2. Dedication to quality, supply & service. 3. Strictly on selecting raw materials. 4. Reasonable & competitive price, fast lead time. 5. Sample is available for your eva

Epibrassinolide

Cas:78821-43-9

Min.Order:1 Gram

FOB Price: $12.0 / 15.0

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

Factory direct supply CAS 78821-43-9 with best quality

Cas:78821-43-9

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

inquiry

Hebei Sankai Chemical Technology Co., Ltd

1. Product advantages ♦ High purity, all above 98.5%, no impurities after dissolution ♦ We will test each batch to ensure quality ♦ OEM and private brand services designed for free ♦ Various cap colors available ♦ W

Epibrassinolide CAS78821-43-9

Cas:78821-43-9

Min.Order:1 Kilogram

FOB Price: $289.0 / 499.0

Type:Trading Company

inquiry

Henan Sinotech Import&Export Corporation

Product name: Brassinolide CAS No.: 78821-43-9 Content: 90% Chemical name: (3As,5s,6r,7ar,7bs,9as,10r,12as,12bs)-10-[(2s,3r,4r,5s)-3,4-dihydroxy-5,6-dimethy

24-Epibrassinolide CAS: 78821-43-9

Cas:78821-43-9

Min.Order:5 Metric Ton

FOB Price: $1.0 / 2.0

Type:Other

inquiry

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

Plant Growth Regulator, Epibrassinolide CAS:78821-43-9

Cas:78821-43-9

Min.Order:1 Gram

FOB Price: $80.1 / 84.6

Type:Trading Company

inquiry

Qingdao Beluga Import and Export Co., LTD

Epibrassinolide CAS:78821-43-9 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 intermedi

Epibrassinolide CAS:78821-43-9

Cas:78821-43-9

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

Leader Biochemical Group

PRODUCT DETAILS Epibrassinolide Basic inf

China Largest Factory Manufacturer sales Epibrassinolide CAS 78821-43-9

Cas:78821-43-9

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

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

Epibrassinolide

Cas:78821-43-9

Min.Order:0

Negotiable

Type:Manufacturers

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

epibrassinolide

Cas:78821-43-9

Min.Order:100 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia

Epibrassinolide

Cas:78821-43-9

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Nanjing Spring & Autumn Biological Engineering Co., Ltd.

Nanjing Spring & Autumn Biological Engineering Co., Ltd. Which was founded at 2008, has an R & D team composed very experienced natural products chemists. The company is a high-tech enterprise engaged in functional health care products raw ma

Epibrassinolide

Cas:78821-43-9

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

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

Factory Supply epibrassinolide

Cas:78821-43-9

Min.Order:0 Metric Ton

Negotiable

Type:Other

inquiry

Shanghai Systeam Biochem CO.,ltd

Epibrassinolide(We are one of a few suppliers that can offer custom synthesis service of this product) We are specialized in custom synthesis, chemical/pharmaceutical/ pesticides outsourcing and contract research. We are committ

Epibrassinolide

Cas:78821-43-9

Min.Order:100 Gram

FOB Price: $55.0 / 77.0

Type:Lab/Research institutions

inquiry

Hangzhou Lingrui Chemical Co.,Ltd.

our strengths: 1: Fast and guaranteed shipment (TNT;EMS;FEDEX;DHL;UPS;EUB, special line) 2: Various payment items accepted (Btc; MoneyGram; WU) 3: Valued package (Paraffin coating; Double aluminum foil bag; Vacuum packaging) 4: Efficient delivery

24-Epicastasterone manufacturer

Cas:78821-43-9

Min.Order:1 Gram

Negotiable

Type:Other

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

Zibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi

High quality 24-Epibrassinolide

Cas:78821-43-9

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Henan Tianfu Chemical Co., Ltd.

Product Name: Epibrassinolide Synonyms: 22R,23R,24R-2ALPHA,3ALPHA,22,28-TETRAHYDROXY-B-HOMO-7-OXA-5ALPHA-ERGOSTA-6-ONE;(22R,23R,24R)-2-ALPHA,3-ALPHA,22,23-TETRAHYDROXY-24-METHYL-B-HOMO-7-OXA-5-ALPHA-CHOLESTAN-6-ONE;22R,23R,24R-2A,3A,22,23-TE

TIANFU-CHEM Epibrassinolide

Cas:78821-43-9

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Siwei Development Group Ltd.

Product name: Epibrassinolide CAS No.:78821-43-9 Molecule Formula:C28H48O6 Molecule Weight:480.67 Purity: 99% Package: 25kg/drum Description:White powder Manufacture Standards:Enterprise Standard TESTING ITEMS SPE

High Quality Epibrassinolide in stock

Cas:78821-43-9

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

24-epicastasterone
72050-71-6

24-epicastasterone

24-epibrassinolide
78821-43-9

24-epibrassinolide

Conditions
ConditionsYield
With trifluoroacetyl peroxide In dichloromethane; water at 0℃; for 3h;83%
With trifluoroacetyl peroxide In chloroform for 2h; Ambient temperature;80%
With dihydrogen peroxide; trifluoroacetic anhydride In chloroform at 0 - 20℃; for 2h;80%
(22R,23R,24R)-2α,3α,22,23-tetrahydroxy-B-homo-7-oxa-5α-ergostan-6-one tetraacetate
108942-14-9

(22R,23R,24R)-2α,3α,22,23-tetrahydroxy-B-homo-7-oxa-5α-ergostan-6-one tetraacetate

24-epibrassinolide
78821-43-9

24-epibrassinolide

Conditions
ConditionsYield
With potassium hydroxide for 1h; Heating;73%
(22E,24R)-B-Homo-7-oxa-5α-ergost-2,22-dien-6-one
124696-45-3

(22E,24R)-B-Homo-7-oxa-5α-ergost-2,22-dien-6-one

A

(22S,23S)-24-epibrassinolide
78821-42-8

(22S,23S)-24-epibrassinolide

B

24-epibrassinolide
78821-43-9

24-epibrassinolide

Conditions
ConditionsYield
With 4-methylmorpholine N-oxide; osmium(VIII) oxide In tetrahydrofuran; water; tert-butyl alcohol for 48h; Ambient temperature; Yield given. Yields of byproduct given;
(22R,23R,24R)-2α,3α,22,23-tetrahydroxy-24-methyl-B-homo-7-oxa-5α-cholestan-6-one 22,23-methylboronate
1244967-00-7

(22R,23R,24R)-2α,3α,22,23-tetrahydroxy-24-methyl-B-homo-7-oxa-5α-cholestan-6-one 22,23-methylboronate

24-epibrassinolide
78821-43-9

24-epibrassinolide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: trimethylamine-N-oxide / diethylene glycol dimethyl ether / 0.75 h / Reflux
2: Dowex-50W×8, 200–400 mesh, NH4+ form resin
View Scheme
(22R,23R,24R)-2α,3α,22,23-tetrahydroxy-24-methyl-B-homo-7-oxa-5α-cholestan-6-one 22,23-boronate
1493793-17-1

(22R,23R,24R)-2α,3α,22,23-tetrahydroxy-24-methyl-B-homo-7-oxa-5α-cholestan-6-one 22,23-boronate

24-epibrassinolide
78821-43-9

24-epibrassinolide

Conditions
ConditionsYield
With Dowex-50W×8, 200-400 mesh, NH4+ form resin
Ergosterol
57-87-4

Ergosterol

24-epibrassinolide
78821-43-9

24-epibrassinolide

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1.1: methanesulfonyl chloride; pyridine / 20 °C
2.1: ammonia; lithium / tetrahydrofuran / 0.08 h / -78 - 65 °C / Inert atmosphere
2.2: 0.17 h / -78 - 60 °C / Inert atmosphere
2.3: Inert atmosphere
3.1: pyridine hydrochloride; lithium bromide / N,N-dimethyl acetamide / 6 h / 165 °C / Inert atmosphere
4.1: potassium carbonate; osmium(VIII) oxide; potassium hexacyanoferrate(III); 10,11-dihydroquinidine p-chlorobenzoate; methanesulfonamide / water; tert-butyl alcohol
5.1: trifluoroacetyl peroxide
View Scheme
Multi-step reaction with 7 steps
1: sodium carbonate / toluene / 2 h / 10 °C
2: potassium hydrogencarbonate / water; acetone / 3 h / Reflux
3: manganese(IV) oxide / water; methanol / 10 h / 40 °C
4: N,N,N,N,N,N-hexamethylphosphoric triamide; calcium / -5 - 0 °C
5: pyridine hydrochloride; lithium bromide / N,N-dimethyl acetamide / 3 h / 160 °C / Inert atmosphere
6: potassium hexacyanoferrate(III); potassium carbonate; methanesulfonamide; osmium(VIII) oxide; AD-mix-β / water; tert-butyl alcohol / 144 h / 20 °C
7: trifluoroacetic anhydride; dihydrogen peroxide / chloroform / 2 h / 0 - 20 °C
View Scheme
(22E)-3α,5-cyclo-5α-ergosta-7,22-dien-6β-one
3037-46-5

(22E)-3α,5-cyclo-5α-ergosta-7,22-dien-6β-one

24-epibrassinolide
78821-43-9

24-epibrassinolide

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: ammonia; lithium / tetrahydrofuran / 0.08 h / -78 - 65 °C / Inert atmosphere
1.2: 0.17 h / -78 - 60 °C / Inert atmosphere
1.3: Inert atmosphere
2.1: pyridine hydrochloride; lithium bromide / N,N-dimethyl acetamide / 6 h / 165 °C / Inert atmosphere
3.1: potassium carbonate; osmium(VIII) oxide; potassium hexacyanoferrate(III); 10,11-dihydroquinidine p-chlorobenzoate; methanesulfonamide / water; tert-butyl alcohol
4.1: trifluoroacetyl peroxide
View Scheme
(22E)-3α,5-cyclo-5α-ergosta-22-en-6-one
3152-46-3

(22E)-3α,5-cyclo-5α-ergosta-22-en-6-one

24-epibrassinolide
78821-43-9

24-epibrassinolide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: pyridine hydrochloride; lithium bromide / N,N-dimethyl acetamide / 6 h / 165 °C / Inert atmosphere
2: potassium carbonate; osmium(VIII) oxide; potassium hexacyanoferrate(III); 10,11-dihydroquinidine p-chlorobenzoate; methanesulfonamide / water; tert-butyl alcohol
3: trifluoroacetyl peroxide
View Scheme
24R-methyl-5α-cholesta-2,22-dien-6-one
72050-68-1

24R-methyl-5α-cholesta-2,22-dien-6-one

24-epibrassinolide
78821-43-9

24-epibrassinolide

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: potassium carbonate; osmium(VIII) oxide; potassium hexacyanoferrate(III); 10,11-dihydroquinidine p-chlorobenzoate; methanesulfonamide / water; tert-butyl alcohol
2: trifluoroacetyl peroxide
View Scheme
(22E,24R)-3α-5-cyclo-5α-ergosta-22-en-6-one

(22E,24R)-3α-5-cyclo-5α-ergosta-22-en-6-one

24-epibrassinolide
78821-43-9

24-epibrassinolide

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: pyridine hydrochloride; lithium bromide / N,N-dimethyl acetamide / 3 h / 160 °C / Inert atmosphere
2: potassium hexacyanoferrate(III); potassium carbonate; methanesulfonamide; osmium(VIII) oxide; AD-mix-β / water; tert-butyl alcohol / 144 h / 20 °C
3: trifluoroacetic anhydride; dihydrogen peroxide / chloroform / 2 h / 0 - 20 °C
View Scheme
(22E,24R)-5α-ergosta-5,7,22-triene-3-p-toluenesulfonate
51373-27-4

(22E,24R)-5α-ergosta-5,7,22-triene-3-p-toluenesulfonate

24-epibrassinolide
78821-43-9

24-epibrassinolide

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: potassium hydrogencarbonate / water; acetone / 3 h / Reflux
2: manganese(IV) oxide / water; methanol / 10 h / 40 °C
3: N,N,N,N,N,N-hexamethylphosphoric triamide; calcium / -5 - 0 °C
4: pyridine hydrochloride; lithium bromide / N,N-dimethyl acetamide / 3 h / 160 °C / Inert atmosphere
5: potassium hexacyanoferrate(III); potassium carbonate; methanesulfonamide; osmium(VIII) oxide; AD-mix-β / water; tert-butyl alcohol / 144 h / 20 °C
6: trifluoroacetic anhydride; dihydrogen peroxide / chloroform / 2 h / 0 - 20 °C
View Scheme
(22E,24R)-3α-5-cyclo-5α-ergosta-7,22-dien-6-ol

(22E,24R)-3α-5-cyclo-5α-ergosta-7,22-dien-6-ol

24-epibrassinolide
78821-43-9

24-epibrassinolide

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: manganese(IV) oxide / water; methanol / 10 h / 40 °C
2: N,N,N,N,N,N-hexamethylphosphoric triamide; calcium / -5 - 0 °C
3: pyridine hydrochloride; lithium bromide / N,N-dimethyl acetamide / 3 h / 160 °C / Inert atmosphere
4: potassium hexacyanoferrate(III); potassium carbonate; methanesulfonamide; osmium(VIII) oxide; AD-mix-β / water; tert-butyl alcohol / 144 h / 20 °C
5: trifluoroacetic anhydride; dihydrogen peroxide / chloroform / 2 h / 0 - 20 °C
View Scheme
(22E,24R)-3α-5-cyclo-5α-ergosta-7,22-dien-6-one

(22E,24R)-3α-5-cyclo-5α-ergosta-7,22-dien-6-one

24-epibrassinolide
78821-43-9

24-epibrassinolide

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: N,N,N,N,N,N-hexamethylphosphoric triamide; calcium / -5 - 0 °C
2: pyridine hydrochloride; lithium bromide / N,N-dimethyl acetamide / 3 h / 160 °C / Inert atmosphere
3: potassium hexacyanoferrate(III); potassium carbonate; methanesulfonamide; osmium(VIII) oxide; AD-mix-β / water; tert-butyl alcohol / 144 h / 20 °C
4: trifluoroacetic anhydride; dihydrogen peroxide / chloroform / 2 h / 0 - 20 °C
View Scheme
24-epibrassinolide
78821-43-9

24-epibrassinolide

2,2-dimethoxy-propane
77-76-9

2,2-dimethoxy-propane

(22R,23R,24R)-2α,3α,22,23-diisopropylidenedioxy-B-homo-7-oxa-5α-ergostan-6-one

(22R,23R,24R)-2α,3α,22,23-diisopropylidenedioxy-B-homo-7-oxa-5α-ergostan-6-one

Conditions
ConditionsYield
With toluene-4-sulfonic acid In dichloromethane for 1.5h;90%
bis(trichloromethyl) carbonate
32315-10-9

bis(trichloromethyl) carbonate

24-epibrassinolide
78821-43-9

24-epibrassinolide

(22R,23R,24R)-2α,3α:22,23-bis[carbonylbis(oxy)]-B-homo-7-oxa-24-methyl-5α-cholestan-6-one

(22R,23R,24R)-2α,3α:22,23-bis[carbonylbis(oxy)]-B-homo-7-oxa-24-methyl-5α-cholestan-6-one

Conditions
ConditionsYield
With pyridine In dichloromethane at -80 - 20℃; for 12h;89%
dihydroxy-methyl-borane
13061-96-6

dihydroxy-methyl-borane

24-epibrassinolide
78821-43-9

24-epibrassinolide

(22R,23R,24R)-2α,3α,22,23-tetrahydroxy-24-methyl-B-homo-7-oxa-5α-cholestan-6-one 22,23-methylboronate
1244967-00-7

(22R,23R,24R)-2α,3α,22,23-tetrahydroxy-24-methyl-B-homo-7-oxa-5α-cholestan-6-one 22,23-methylboronate

Conditions
ConditionsYield
With pyridine at 20℃; for 3h;86%
dihydroxy-methyl-borane
13061-96-6

dihydroxy-methyl-borane

indolyl-3-acetic acid anhydride
41547-05-1

indolyl-3-acetic acid anhydride

24-epibrassinolide
78821-43-9

24-epibrassinolide

(22R,23R,24R)-3α-hydroxy-2α-(3'-indolylacetoxy)-24-methyl-B-homo-7-oxa-5α-cholestan-6-one 22,23-methylborate
1449310-49-9

(22R,23R,24R)-3α-hydroxy-2α-(3'-indolylacetoxy)-24-methyl-B-homo-7-oxa-5α-cholestan-6-one 22,23-methylborate

Conditions
ConditionsYield
Stage #1: dihydroxy-methyl-borane; 24-epibrassinolide With pyridine at 20℃; for 6h;
Stage #2: indolyl-3-acetic acid anhydride In 1,4-dioxane at 40℃; for 24h;
76%
indole-3-acetic acid
87-51-4

indole-3-acetic acid

24-epibrassinolide
78821-43-9

24-epibrassinolide

(22R,23R,24R)-3α-,23-dihydroxy-2α-,22-di(indol-3-ylacetoxy)-24-methyl-B-homo-7-oxa-5α-cholestan-6-one
1379576-35-8

(22R,23R,24R)-3α-,23-dihydroxy-2α-,22-di(indol-3-ylacetoxy)-24-methyl-B-homo-7-oxa-5α-cholestan-6-one

Conditions
ConditionsYield
Stage #1: indole-3-acetic acid With dicyclohexyl-carbodiimide In 1,4-dioxane at 20℃; for 0.5h;
Stage #2: 24-epibrassinolide With dmap In 1,4-dioxane at 40℃; for 5h;
73%
Stage #1: indole-3-acetic acid With dicyclohexyl-carbodiimide In 1,4-dioxane at 20℃; for 0.5h;
Stage #2: 24-epibrassinolide With dmap In 1,4-dioxane at 40℃; for 5h;
73%
24-epibrassinolide
78821-43-9

24-epibrassinolide

N-(2'-naphthoyl)imidazole
141903-34-6

N-(2'-naphthoyl)imidazole

C72H72O10

C72H72O10

Conditions
ConditionsYield
In acetonitrile Heating;60%
benzyl bromide
100-39-0

benzyl bromide

24-epibrassinolide
78821-43-9

24-epibrassinolide

A

(22R,23R,24R)-2α,3α,22-tribenzyloxy-23-hydroxy-B-homo-7-oxa-5α-ergost-6-one

(22R,23R,24R)-2α,3α,22-tribenzyloxy-23-hydroxy-B-homo-7-oxa-5α-ergost-6-one

B

(22R,23R,24R)-2α,3α,23-tribenzyloxy-22-hydroxy-B-homo-7-oxa-5α-ergost-6-one

(22R,23R,24R)-2α,3α,23-tribenzyloxy-22-hydroxy-B-homo-7-oxa-5α-ergost-6-one

Conditions
ConditionsYield
Stage #1: 24-epibrassinolide With sodium hydride In tetrahydrofuran; mineral oil at 0℃; for 0.166667h; Inert atmosphere;
Stage #2: benzyl bromide In tetrahydrofuran; mineral oil at 20℃; for 17h; Inert atmosphere;
A 60%
B 30%
2-O-benzylsalicylic acid anhydride

2-O-benzylsalicylic acid anhydride

24-epibrassinolide
78821-43-9

24-epibrassinolide

(22R,23R)-2α-(2'-benzyloxybenzoyloxy)-3α,22,23-trihydroxy-β-homo-7-oxa-5-ergostan-6-one

(22R,23R)-2α-(2'-benzyloxybenzoyloxy)-3α,22,23-trihydroxy-β-homo-7-oxa-5-ergostan-6-one

Conditions
ConditionsYield
Stage #1: 2-O-benzylsalicylic acid anhydride With dicyclohexyl-carbodiimide In 1,4-dioxane at 20℃; for 1h;
Stage #2: 24-epibrassinolide With dmap In 1,4-dioxane at 20℃; for 24h;
59%
1,4-Phenyldiboronic acid
4612-26-4

1,4-Phenyldiboronic acid

24-epibrassinolide
78821-43-9

24-epibrassinolide

C68H96B4O12
1416948-89-4

C68H96B4O12

Conditions
ConditionsYield
With pyridine at 65℃; for 3.5h;56%
24-epibrassinolide
78821-43-9

24-epibrassinolide

12β-hydroxy-24-epibrassinolide

12β-hydroxy-24-epibrassinolide

Conditions
ConditionsYield
for 120h; Cunninghamella echinulata IMET 43918;13 mg
24-epibrassinolide
78821-43-9

24-epibrassinolide

A

25-hydroxy-24-epibrassinolide
156217-67-3

25-hydroxy-24-epibrassinolide

B

26-hydroxy-24-epi-brassinolide

26-hydroxy-24-epi-brassinolide

Conditions
ConditionsYield
With cytochrome P450-dependent monooxygenase Product distribution; title comp. exogenously applied to cell suspension cultures of lycopersicon esculentum; various periods of time (8-72 h);
24-epibrassinolide
78821-43-9

24-epibrassinolide

5, 10, 15, 20-tetrakis[4-(dihydroxyboryl)phenyl]-21H,23H-porphine

5, 10, 15, 20-tetrakis[4-(dihydroxyboryl)phenyl]-21H,23H-porphine

C156H210B4N4O24

C156H210B4N4O24

Conditions
ConditionsYield
With methanol at 20℃;
24-epibrassinolide
78821-43-9

24-epibrassinolide

5,15-bis(4-dioxylborylphenyl)porphyrin

5,15-bis(4-dioxylborylphenyl)porphyrin

C88H112B2N4O12

C88H112B2N4O12

Conditions
ConditionsYield
With methanol at 20℃;
5,15-bis(4-dioxylborylphenyl)-10,20-bispentafluorophenylporphyrin

5,15-bis(4-dioxylborylphenyl)-10,20-bispentafluorophenylporphyrin

24-epibrassinolide
78821-43-9

24-epibrassinolide

C100H110B2F10N4O12

C100H110B2F10N4O12

Conditions
ConditionsYield
With methanol at 20℃;
indolyl-3-acetic acid anhydride
41547-05-1

indolyl-3-acetic acid anhydride

24-epibrassinolide
78821-43-9

24-epibrassinolide

(22R,23R,24R)-3α,22,23-trihydroxy-2α-(3'-indolylacetoxy)-24-methyl-B-homo-7-oxa-5α-cholestan-6-one
1449310-50-2

(22R,23R,24R)-3α,22,23-trihydroxy-2α-(3'-indolylacetoxy)-24-methyl-B-homo-7-oxa-5α-cholestan-6-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: pyridine / 6 h / 20 °C
1.2: 24 h / 40 °C
2.1: dihydrogen peroxide; potassium carbonate / methanol / 2 h
View Scheme
24-epibrassinolide
78821-43-9

24-epibrassinolide

C28H50O6

C28H50O6

Conditions
ConditionsYield
With diisobutylaluminium hydride In tetrahydrofuran; toluene at -78℃; for 0.666667h; Inert atmosphere;2.43 g
24-epibrassinolide
78821-43-9

24-epibrassinolide

C28H49BO7

C28H49BO7

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: diisobutylaluminium hydride / toluene; tetrahydrofuran / 0.67 h / -78 °C / Inert atmosphere
2: tetrahydrofuran / 1 h / 20 °C / Inert atmosphere
View Scheme
24-epibrassinolide
78821-43-9

24-epibrassinolide

C32H55BO7

C32H55BO7

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: diisobutylaluminium hydride / toluene; tetrahydrofuran / 0.67 h / -78 °C / Inert atmosphere
2: tetrahydrofuran / 1 h / 20 °C / Inert atmosphere
3: toluene-4-sulfonic acid / water / 3 h
View Scheme
24-epibrassinolide
78821-43-9

24-epibrassinolide

C32H56O6

C32H56O6

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: diisobutylaluminium hydride / toluene; tetrahydrofuran / 0.67 h / -78 °C / Inert atmosphere
2: tetrahydrofuran / 1 h / 20 °C / Inert atmosphere
3: toluene-4-sulfonic acid / water / 3 h
4: triethylamine; sodium periodate / water
View Scheme
24-epibrassinolide
78821-43-9

24-epibrassinolide

(20S)-2α,3α-isopropylidenedioxy-6α-methoxy-B-homo-7-oxa-5α-pregnan-20-carbaldehyde

(20S)-2α,3α-isopropylidenedioxy-6α-methoxy-B-homo-7-oxa-5α-pregnan-20-carbaldehyde

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: diisobutylaluminium hydride / toluene; tetrahydrofuran / 0.67 h / -78 °C / Inert atmosphere
2: tetrahydrofuran / 1 h / 20 °C / Inert atmosphere
3: toluene-4-sulfonic acid / water / 3 h
4: triethylamine; sodium periodate / water
5: sodium periodate / 30 h / 20 °C
View Scheme
24-epibrassinolide
78821-43-9

24-epibrassinolide

(22R)-22-hydroxy-2α,3α-isopropylidenedioxy-6α-methoxy-24-methyl-B-homo-7-oxa-5α-chol-23-yne

(22R)-22-hydroxy-2α,3α-isopropylidenedioxy-6α-methoxy-24-methyl-B-homo-7-oxa-5α-chol-23-yne

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1.1: diisobutylaluminium hydride / toluene; tetrahydrofuran / 0.67 h / -78 °C / Inert atmosphere
2.1: tetrahydrofuran / 1 h / 20 °C / Inert atmosphere
3.1: toluene-4-sulfonic acid / water / 3 h
4.1: triethylamine; sodium periodate / water
5.1: sodium periodate / 30 h / 20 °C
6.1: n-butyllithium / tetrahydrofuran; hexane / 2 h / -78 °C / Inert atmosphere
6.2: 1 h / 20 °C
View Scheme
24-epibrassinolide
78821-43-9

24-epibrassinolide

(22S)-22-hydroxy-2α,3α-isopropylidenedioxy-6α-methoxy-24-methyl-B-homo-7-oxa-5α-chol-23-yne

(22S)-22-hydroxy-2α,3α-isopropylidenedioxy-6α-methoxy-24-methyl-B-homo-7-oxa-5α-chol-23-yne

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1.1: diisobutylaluminium hydride / toluene; tetrahydrofuran / 0.67 h / -78 °C / Inert atmosphere
2.1: tetrahydrofuran / 1 h / 20 °C / Inert atmosphere
3.1: toluene-4-sulfonic acid / water / 3 h
4.1: triethylamine; sodium periodate / water
5.1: sodium periodate / 30 h / 20 °C
6.1: n-butyllithium / tetrahydrofuran; hexane / 2 h / -78 °C / Inert atmosphere
6.2: 1 h / 20 °C
View Scheme
24-epibrassinolide
78821-43-9

24-epibrassinolide

(22S,Z)-22-acetoxy-2α,3α-isopropylidenedioxy-6α-methoxy-24-methyl-B-homo-7-oxa-5α-chol-23-ene

(22S,Z)-22-acetoxy-2α,3α-isopropylidenedioxy-6α-methoxy-24-methyl-B-homo-7-oxa-5α-chol-23-ene

Conditions
ConditionsYield
Multi-step reaction with 8 steps
1.1: diisobutylaluminium hydride / toluene; tetrahydrofuran / 0.67 h / -78 °C / Inert atmosphere
2.1: tetrahydrofuran / 1 h / 20 °C / Inert atmosphere
3.1: toluene-4-sulfonic acid / water / 3 h
4.1: triethylamine; sodium periodate / water
5.1: sodium periodate / 30 h / 20 °C
6.1: n-butyllithium / tetrahydrofuran; hexane / 2 h / -78 °C / Inert atmosphere
6.2: 1 h / 20 °C
7.1: pyridine / 5 h
8.1: triethylamine; dmap / dichloromethane / 3 h / 20 °C / Inert atmosphere
View Scheme
24-epibrassinolide
78821-43-9

24-epibrassinolide

(22R,E)-22-acetoxy-2α,3α-isopropylidenedioxy-6α-methoxy-24-methyl-B-homo-7-oxa-5α-chol-23-ene

(22R,E)-22-acetoxy-2α,3α-isopropylidenedioxy-6α-methoxy-24-methyl-B-homo-7-oxa-5α-chol-23-ene

Conditions
ConditionsYield
Multi-step reaction with 8 steps
1.1: diisobutylaluminium hydride / toluene; tetrahydrofuran / 0.67 h / -78 °C / Inert atmosphere
2.1: tetrahydrofuran / 1 h / 20 °C / Inert atmosphere
3.1: toluene-4-sulfonic acid / water / 3 h
4.1: triethylamine; sodium periodate / water
5.1: sodium periodate / 30 h / 20 °C
6.1: n-butyllithium / tetrahydrofuran; hexane / 2 h / -78 °C / Inert atmosphere
6.2: 1 h / 20 °C
7.1: lithium; ammonia / tetrahydrofuran / 0.5 h / -70 - -50 °C / Inert atmosphere
8.1: triethylamine; dmap / dichloromethane / 3 h / 20 °C / Inert atmosphere
View Scheme
24-epibrassinolide
78821-43-9

24-epibrassinolide

(E)-2α,3α-isopropylidenedioxy-6α-methoxy-B-homo-7-oxa-5α-27-norcampest-22-en-26-oic acid

(E)-2α,3α-isopropylidenedioxy-6α-methoxy-B-homo-7-oxa-5α-27-norcampest-22-en-26-oic acid

Conditions
ConditionsYield
Multi-step reaction with 9 steps
1.1: diisobutylaluminium hydride / toluene; tetrahydrofuran / 0.67 h / -78 °C / Inert atmosphere
2.1: tetrahydrofuran / 1 h / 20 °C / Inert atmosphere
3.1: toluene-4-sulfonic acid / water / 3 h
4.1: triethylamine; sodium periodate / water
5.1: sodium periodate / 30 h / 20 °C
6.1: n-butyllithium / tetrahydrofuran; hexane / 2 h / -78 °C / Inert atmosphere
6.2: 1 h / 20 °C
7.1: pyridine / 5 h
8.1: triethylamine; dmap / dichloromethane / 3 h / 20 °C / Inert atmosphere
9.1: lithium diisopropyl amide / tetrahydrofuran / 0.5 h / -78 °C / Inert atmosphere
9.2: 36 h / -78 - 20 °C
9.3: 2 h
View Scheme
Multi-step reaction with 9 steps
1.1: diisobutylaluminium hydride / toluene; tetrahydrofuran / 0.67 h / -78 °C / Inert atmosphere
2.1: tetrahydrofuran / 1 h / 20 °C / Inert atmosphere
3.1: toluene-4-sulfonic acid / water / 3 h
4.1: triethylamine; sodium periodate / water
5.1: sodium periodate / 30 h / 20 °C
6.1: n-butyllithium / tetrahydrofuran; hexane / 2 h / -78 °C / Inert atmosphere
6.2: 1 h / 20 °C
7.1: lithium; ammonia / tetrahydrofuran / 0.5 h / -70 - -50 °C / Inert atmosphere
8.1: triethylamine; dmap / dichloromethane / 3 h / 20 °C / Inert atmosphere
9.1: lithium diisopropyl amide / tetrahydrofuran / 0.5 h / -78 °C / Inert atmosphere
9.2: 36 h / -78 - 20 °C
9.3: 2 h
View Scheme

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