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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

3-(Piperidin-4-yl)-3,4-dihydroquinazolin-2(1H)-one

Cas:79098-75-2

Min.Order:1 Kilogram

FOB Price: $3.0

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

2(1H)-Quinazolinone,3,4-dihydro-3-(4-piperidinyl)-

Cas:79098-75-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou Huarong Pharm Co., Ltd.

We Huarong Pharm can provide Customized Synthesis & Process R&D & APIs and intermediates Production & Quality Research & Registration Application, especially our GMP validation service which complies with SFDA, FDA, WHO and EU EMPA. O

3-(Piperidin-4-yl)-3,4-dihydroquinazolin-2(1H)-one

Cas:79098-75-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

GIHI CHEMICALS CO.,LIMITED

Lower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe

3-(Piperidin-4-yl)-3,4-dihydroquinazolin-2(1H)-one

Cas:79098-75-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Antimex Chemical Limied

Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali

3-(Piperidin-4-yl)-1,2,3,4-tetrahydroquinazolin-2-one

Cas:79098-75-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

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?present

3-Piperidin-4-yl-3,4-dihydro-1H-quinazolin-2-one

Cas:79098-75-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

BOC Sciences

We are committed to providing our customers with the best products and services at the most competitive prices.Appearance:clear liquid Storage:Room temperature with sealed well Package:according to the clients requirement Application:Use as primary a

3-(Piperidin-4-yl)-3,4-dihydroquinazolin-2(1H)-one

Cas:79098-75-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Hangzhou Fandachem Co.,Ltd

3-(PIPERIDIN-4-YL)-3,4-DIHYDROQUINAZOLIN-2(1H)-ONEAppearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express

3-(PIPERIDIN-4-YL)-3,4-DIHYDROQUINAZOLIN-2(1H)-ONE

Cas:79098-75-2

Min.Order:0

Negotiable

Type:Other

inquiry

ZHEJIANG JIUZHOU CHEM CO.,LTD

factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin

3-(Piperidin-4-yl)-3,4-dihydroquinazolin-2(1H)-one

Cas:79098-75-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Amadis Chemical Co., Ltd.

1.Professional synthesis laboratory and production base. 2.Strong synthesis team and service team. 3.Professional data management system. 4.We provide the professional test date and product information ,ex. HNMR ,CNMR,FNMR, HPLC/G

3-(4-piperidinyl)-1,4-dihydroquinazolin-2-one

Cas:79098-75-2

Min.Order:10 Milligram

Negotiable

Type:Lab/Research institutions

inquiry

Jilin haofei import and export trade Co.,Ltd

Price, service, company and transport advantage: 1. Best service, place of origin China, high quality, and reasonable price. 2. It's customers' right to choose the package (EMS, DHL, FEDEX, UPS). 3. It's customers' right

3-(Piperidin-4-yl)-3,4-dihydroquinazolin-2(1H)-one CAS NO.79098-75-2

Cas:79098-75-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Watson International Ltd

Watson International Ltd' has a very strong R&D and technical capacity supported by FCAD's platform. The subsidiaries under FCAD Group have accumulated much know-how of different fine chemical branches. For example, Apnoke Scientific L

3-(Piperidin-4-yl)-3,4-dihydroquinazolin-2(1H)-one

Cas:79098-75-2

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

ENAO Chemical Co, Limited

For quick quotation, please send us the inquiry include CAS#, Structure, Chemical Name, quantity, purity, as well as any additional specifications you require, we will try to get back to you within 24 hours. Our Services Besides manufacturing,

3-Piperidin-4-yl-3,4-dihydro-1H-quinazolin-2-one

Cas:79098-75-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Hanhong Scientific Co.,Ltd.

factory,reasonable price Appearance:detailed see specifications Storage:Store in dry, dark and ventilated place. Package:according to the clients requirement Application:pharmaceutical intermediates Transportation:by courier,air or sea Port:S

3-(Piperidin-4-yl)-3,4-dihydroquinazolin-2(1H)-one79098-75-2

Cas:79098-75-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Chemical Technology Co.,LTD

1. Production capacity: we have three production base with high-tech production equipment and instruments, equipped with professional production personnel, meet your requirements.2. Quality assurance: we have a first-class testing equipment and testi

3-(Piperidin-4-yl)-3,4-dihydroquinazolin-2(1H)-one

Cas:79098-75-2

Min.Order:0

Negotiable

Type:Other

inquiry

Nanjing Norris Pharm Technology Co., Ltd.

R & D enterprises have their own stock in stockAppearance:To be subject to the object Package:Customized Application:pharmaceutical intermediates Transportation:Air Port:Shanghai;Guangzhou

3-Piperidin-4-yl-3,4-dihydro-1H-quinazolin-2-one

Cas:79098-75-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Finetech Industry Limited

FINETECH INDUSTRY LIMITED is a LONDON based CRO company providing drug discovery & development services to worldwide clients. FINETECH INDUSTRY LIMITED supplies the 3-(4-Piperidinyl)-3,4-dihydro-2(1H)-quinazolinone, CAS:79098-75-2 with the most compe

3-(4-Piperidinyl)-3,4-dihydro-2(1H)-quinazolinone

Cas:79098-75-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Debye Scientific

Debyesci is here who supplied several kinds of chemical products to global pharmaceutical, drug discovery, agrochemical and biotechnology industries for four yearsOur key scientific leadership team has gained experience in top research and developmen

3-Piperidin-4-yl-3,4-dihydro-1H-quinazolin-2-one

Cas:79098-75-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai chamflyer chemicals Co., Ltd

High quality Application:Pharmaceutial

3-Piperidin-4-yl-3,4-dihydro-1H-quinazolin-2-one

Cas:79098-75-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

qingcang(shanghai) Medical Technology Co., Ltd.

high quality,stable supply,all in stock Application:Drug Discovery

3,4-DIHYDRO-3-(4-PIPERIDINYL)-2(1H)-QUINAZOLINONEHCL

Cas:79098-75-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Chinglu Pharmaceutical Research LLC

3-(Piperidin-4-yl)-3,4-dihydroquinazolin-2(1H)-one

Cas:79098-75-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Synthetic route

1-benzyl-4-(1,2,3,4-tetrahydro-2-oxo-3-quinazolinyl)piperidine
79098-88-7

1-benzyl-4-(1,2,3,4-tetrahydro-2-oxo-3-quinazolinyl)piperidine

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

Conditions
ConditionsYield
With palladium 10% on activated carbon; hydrogen In methanol for 48h;100%
With hydrogen; Pd/C In ethanol at 60℃; under 1500.15 Torr;85%
With hydrogen; palladium on activated charcoal In ethanol at 60℃; under 1500.15 Torr;85%
tert-butyl 4-(2-oxo-1,2,3,4-tetrahydroquinazolin-3-yl)piperidine-1-carboxylate
960221-97-0

tert-butyl 4-(2-oxo-1,2,3,4-tetrahydroquinazolin-3-yl)piperidine-1-carboxylate

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

Conditions
ConditionsYield
With trifluoroacetic acid In dichloromethane at 20℃;92%
2-nitro-benzaldehyde
552-89-6

2-nitro-benzaldehyde

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: sodium tetrahydroborate; methanol
2: hydrogen / palladium on activated charcoal / ethanol
3: acetonitrile / Reflux
View Scheme
4-amino-1-benzylpiperidine
50541-93-0

4-amino-1-benzylpiperidine

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: sodium tetrahydroborate; methanol
2: hydrogen / palladium on activated charcoal / ethanol
3: acetonitrile / Reflux
View Scheme
Multi-step reaction with 5 steps
1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; benzotriazol-1-ol; triethylamine / N,N-dimethyl-formamide / 5 h / 70 °C
2: trifluoroacetic acid / dichloromethane / 20 h / 0 - 20 °C
3: lithium aluminium tetrahydride / 1,4-dioxane / 3 h / Reflux
4: tetrahydrofuran / 5 h / 20 °C
5: hydrogen; palladium 10% on activated carbon / methanol / 48 h
View Scheme
2-amino-N-[1-(phenylmethyl)-4-piperidinyl]-benzenemethanamine
79099-03-9

2-amino-N-[1-(phenylmethyl)-4-piperidinyl]-benzenemethanamine

1,1'-carbonyldiimidazole
530-62-1

1,1'-carbonyldiimidazole

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

Conditions
ConditionsYield
Stage #1: 2-amino-N-[1-(phenylmethyl)-4-piperidinyl]-benzenemethanamine; 1,1'-carbonyldiimidazole In acetonitrile Reflux;
Stage #2: With hydrogen; palladium(II) hydroxide In methanol
(1-benzyl-piperidin-4-yl)-(2-nitro-benzyl)-amine
98754-28-0

(1-benzyl-piperidin-4-yl)-(2-nitro-benzyl)-amine

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: hydrogen / palladium on activated charcoal / ethanol
2: acetonitrile / Reflux
View Scheme
[2-(1-benzyl-piperidin-4-ylcarbamoyl)phenyl] tert-butyl carbamate

[2-(1-benzyl-piperidin-4-ylcarbamoyl)phenyl] tert-butyl carbamate

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: trifluoroacetic acid / dichloromethane / 20 h / 0 - 20 °C
2: lithium aluminium tetrahydride / 1,4-dioxane / 3 h / Reflux
3: tetrahydrofuran / 5 h / 20 °C
4: hydrogen; palladium 10% on activated carbon / methanol / 48 h
View Scheme
2-amino-N-(1-benzyl-piperidin-4-yl)-benzamide
83425-16-5

2-amino-N-(1-benzyl-piperidin-4-yl)-benzamide

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: lithium aluminium tetrahydride / 1,4-dioxane / 3 h / Reflux
2: tetrahydrofuran / 5 h / 20 °C
3: hydrogen; palladium 10% on activated carbon / methanol / 48 h
View Scheme
2-amino-N-[1-(phenylmethyl)-4-piperidinyl]-benzenemethanamine
79099-03-9

2-amino-N-[1-(phenylmethyl)-4-piperidinyl]-benzenemethanamine

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: tetrahydrofuran / 5 h / 20 °C
2: hydrogen; palladium 10% on activated carbon / methanol / 48 h
View Scheme
2-(tert-butyloxycarbonylamino)benzoic acid
68790-38-5

2-(tert-butyloxycarbonylamino)benzoic acid

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; benzotriazol-1-ol; triethylamine / N,N-dimethyl-formamide / 5 h / 70 °C
2: trifluoroacetic acid / dichloromethane / 20 h / 0 - 20 °C
3: lithium aluminium tetrahydride / 1,4-dioxane / 3 h / Reflux
4: tetrahydrofuran / 5 h / 20 °C
5: hydrogen; palladium 10% on activated carbon / methanol / 48 h
View Scheme
tert-butyl 4-((2-aminobenzyl)amino)piperidine-1-carboxylate
79098-98-9

tert-butyl 4-((2-aminobenzyl)amino)piperidine-1-carboxylate

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: triethylamine / acetonitrile / 18 h / 20 °C / Reflux
2: trifluoroacetic acid / dichloromethane / 20 °C
View Scheme
N-tert-butyloxycarbonylpiperidin-4-one
79099-07-3

N-tert-butyloxycarbonylpiperidin-4-one

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: sodium tris(acetoxy)borohydride / dichloromethane / 48 h / 20 °C
2: triethylamine / acetonitrile / 18 h / 20 °C / Reflux
3: trifluoroacetic acid / dichloromethane / 20 °C
View Scheme
2-amino-1-benzylamine
4403-69-4

2-amino-1-benzylamine

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: sodium tris(acetoxy)borohydride / dichloromethane / 48 h / 20 °C
2: triethylamine / acetonitrile / 18 h / 20 °C / Reflux
3: trifluoroacetic acid / dichloromethane / 20 °C
View Scheme
1,1'-Carbonyl-di-(1,2,4-triazole)
41864-22-6

1,1'-Carbonyl-di-(1,2,4-triazole)

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

2-Amino-3-(3,5-dibromo-4-hydroxy-phenyl)-propionic acid methyl ester; hydrochloride
61039-29-0

2-Amino-3-(3,5-dibromo-4-hydroxy-phenyl)-propionic acid methyl ester; hydrochloride

C24H26Br2N4O5

C24H26Br2N4O5

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran100%
1,1'-Carbonyl-di-(1,2,4-triazole)
41864-22-6

1,1'-Carbonyl-di-(1,2,4-triazole)

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

methyl 2-amino-3-(3-methoxyphenyl)propanoate hydrochloride

methyl 2-amino-3-(3-methoxyphenyl)propanoate hydrochloride

C25H30N4O5

C25H30N4O5

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran100%
1,1'-Carbonyl-di-(1,2,4-triazole)
41864-22-6

1,1'-Carbonyl-di-(1,2,4-triazole)

C8H12N2O2S*ClH

C8H12N2O2S*ClH

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

C22H27N5O4S

C22H27N5O4S

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran100%
1,1'-Carbonyl-di-(1,2,4-triazole)
41864-22-6

1,1'-Carbonyl-di-(1,2,4-triazole)

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

3-Nitro-phenylalanin-methylester-hydrochlorid

3-Nitro-phenylalanin-methylester-hydrochlorid

C24H27N5O6

C24H27N5O6

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran100%
C13H13F3O4

C13H13F3O4

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

C26H28F3N3O4

C26H28F3N3O4

Conditions
ConditionsYield
With benzotriazol-1-ol; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine In tetrahydrofuran100%
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

(+/-)-4-(3,4-dimethoxyphenyl)-3-methoxycarbonylbutanoic acid
78647-52-6

(+/-)-4-(3,4-dimethoxyphenyl)-3-methoxycarbonylbutanoic acid

C27H33N3O6

C27H33N3O6

Conditions
ConditionsYield
With benzotriazol-1-ol; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine In tetrahydrofuran100%
β-(methoxycarbonyl)-1-naphthalenebutanoic acid
122872-06-4

β-(methoxycarbonyl)-1-naphthalenebutanoic acid

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

C29H31N3O4

C29H31N3O4

Conditions
ConditionsYield
With benzotriazol-1-ol; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine In tetrahydrofuran100%
3,5-dimethyl-4-hydroxy-β-(methoxycarbonyl)-benzenebutanoic acid

3,5-dimethyl-4-hydroxy-β-(methoxycarbonyl)-benzenebutanoic acid

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

C27H33N3O5

C27H33N3O5

Conditions
ConditionsYield
With benzotriazol-1-ol; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine In tetrahydrofuran100%
1-(methoxycarbonyl)-2-(2-((2-(trimethylsilyl)ethoxy)methyl)-7-methyl-2H-indazol-5-yl)ethyl 4-nitrophenyl carbonate
855778-81-3

1-(methoxycarbonyl)-2-(2-((2-(trimethylsilyl)ethoxy)methyl)-7-methyl-2H-indazol-5-yl)ethyl 4-nitrophenyl carbonate

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

1-(Methoxycarbonyl)-2-(2-((2-(trimethylsilyl)ethoxy)methyl)-7-methyl-2H-indazol-5-yl)ethyl 4-(1,2-dihydro-2-oxoquinazolin-3(4H)-yl)piperidine-1-carboxylate
865626-65-9

1-(Methoxycarbonyl)-2-(2-((2-(trimethylsilyl)ethoxy)methyl)-7-methyl-2H-indazol-5-yl)ethyl 4-(1,2-dihydro-2-oxoquinazolin-3(4H)-yl)piperidine-1-carboxylate

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In DMF (N,N-dimethyl-formamide) at 20℃; for 48h;100%
With N-ethyl-N,N-diisopropylamine In DMF (N,N-dimethyl-formamide) at 20℃; for 48h;100%
(R)-methyl 2-amino-3-(7-methyl-1H-indazol-5-yl)propanoate
890044-58-3

(R)-methyl 2-amino-3-(7-methyl-1H-indazol-5-yl)propanoate

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

(R)-methyl-2-(4-(2-oxo-1,2-dihydroquinazolin-3(4H)-yl)piperidine-1-carboxamido)-3-(7-methyl-1H-indazol-5-yl)propanoate
890044-59-4

(R)-methyl-2-(4-(2-oxo-1,2-dihydroquinazolin-3(4H)-yl)piperidine-1-carboxamido)-3-(7-methyl-1H-indazol-5-yl)propanoate

Conditions
ConditionsYield
Stage #1: methyl (R)-2-amino-3-(7-methyl-1H-indazol-5-yl)propanoate With di(succinimido) carbonate; N-ethyl-N,N-diisopropylamine In N,N-dimethyl-formamide at 20℃; for 0.5h;
Stage #2: 3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one In N,N-dimethyl-formamide for 24h;
100%
3,5-dibromo-4-hydroxy-β-(methoxycarbonyl)-benzenebutanoic acid
204695-24-9

3,5-dibromo-4-hydroxy-β-(methoxycarbonyl)-benzenebutanoic acid

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

C25H27Br2N3O5

C25H27Br2N3O5

Conditions
ConditionsYield
With benzotriazol-1-ol; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; triethylamine In tetrahydrofuran; N,N-dimethyl-formamide98%
3,5-dibromo-4-hydroxy-β-(methoxycarbonyl)-benzenebutanoic acid
204695-24-9

3,5-dibromo-4-hydroxy-β-(methoxycarbonyl)-benzenebutanoic acid

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

C25H27Br2N3O5

C25H27Br2N3O5

Conditions
ConditionsYield
With benzotriazol-1-ol; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine In tetrahydrofuran98%
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

(S)-2-(4-amino-3-chloro-5-trifluoromethyl-benzyl)-4-oxo-4-[4-(2-oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidin-1-yl]-butyric acid methyl ester
688020-82-8

(S)-2-(4-amino-3-chloro-5-trifluoromethyl-benzyl)-4-oxo-4-[4-(2-oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidin-1-yl]-butyric acid methyl ester

Conditions
ConditionsYield
Stage #1: (S)-2-(4-amino-3-chloro-5-trifluoromethyl-benzyl)-succinic acid 1-methyl ester With benzotriazol-1-ol; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine In DMF (N,N-dimethylformamide) at 20℃; for 1h;
Stage #2: 3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one In DMF (N,N-dimethylformamide) at 20℃;
Stage #3: With potassium carbonate; citric acid more than 3 stages;
98%
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

3-(4-bromo-3-methyl-phenyl)-2-{[4-(2-oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid ethyl ester
688021-09-2

3-(4-bromo-3-methyl-phenyl)-2-{[4-(2-oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid ethyl ester

Conditions
ConditionsYield
Stage #1: 2-amino-3-(4-bromo-3-methyl-phenyl)-propionic acid ethyl ester hydrochloride With 1,1'-Carbonyl-di-(1,2,4-triazole); triethylamine In DMF (N,N-dimethylformamide) at 0 - 20℃; for 2h;
Stage #2: 3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one In DMF (N,N-dimethylformamide) at 80℃; for 1.5h;
97%
1,1'-Carbonyl-di-(1,2,4-triazole)
41864-22-6

1,1'-Carbonyl-di-(1,2,4-triazole)

2-amino-3-(3,4-diethyl-phenyl)-propionic acid methylester
600725-39-1

2-amino-3-(3,4-diethyl-phenyl)-propionic acid methylester

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

3-(3,4-diethyl-phenyl)-2-{[4-(2-oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid methylester
686297-92-7

3-(3,4-diethyl-phenyl)-2-{[4-(2-oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid methylester

Conditions
ConditionsYield
Stage #1: 1,1'-Carbonyl-di-(1,2,4-triazole); 2-amino-3-(3,4-diethyl-phenyl)-propionic acid methylester With N-ethyl-N,N-diisopropylamine In tetrahydrofuran at 0 - 10℃; for 1.5h;
Stage #2: In DMF (N,N-dimethyl-formamide) for 0.5h;
Stage #3: 3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one for 10h; Heating / reflux;
97%
(5-bromouracil)acetic acid
31385-63-4

(5-bromouracil)acetic acid

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

5-bromo-1-{2-oxo-2-[4-(2-oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidin-1-yl]-ethyl}-1H-pyrimidine-2,4-dione

5-bromo-1-{2-oxo-2-[4-(2-oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidin-1-yl]-ethyl}-1H-pyrimidine-2,4-dione

Conditions
ConditionsYield
Stage #1: (5-bromouracil)acetic acid With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In N,N-dimethyl-formamide at 20℃; for 0.166667h;
Stage #2: 3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one In N,N-dimethyl-formamide at 20℃; for 18h;
97%
(+/-)-2-Amino-3-(7-chloro-1H-indazol-5-yl)-propionic acid methyl ester
635712-47-9

(+/-)-2-Amino-3-(7-chloro-1H-indazol-5-yl)-propionic acid methyl ester

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

1,1'-carbonyldiimidazole
530-62-1

1,1'-carbonyldiimidazole

(+/-)-3-(7-chloro-1H-indazol-5-yl)-2-{[4-(2-oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidine-1-carbonyl]-amino}-propionic acid methyl ester
635710-82-6

(+/-)-3-(7-chloro-1H-indazol-5-yl)-2-{[4-(2-oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidine-1-carbonyl]-amino}-propionic acid methyl ester

Conditions
ConditionsYield
Stage #1: (+/-)-2-Amino-3-(7-chloro-1H-indazol-5-yl)-propionic acid methyl ester; 1,1'-carbonyldiimidazole In tetrahydrofuran at 0 - 20℃; for 0.25h;
Stage #2: 3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one In tetrahydrofuran at 20℃;
94%
In tetrahydrofuran
C17H20Br2O7

C17H20Br2O7

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

C30H35Br2N3O7

C30H35Br2N3O7

Conditions
ConditionsYield
With O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; triethylamine In tetrahydrofuran; N,N-dimethyl-formamide93%
C16H16O4

C16H16O4

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

C29H31N3O4

C29H31N3O4

Conditions
ConditionsYield
With benzotriazol-1-ol; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine In tetrahydrofuran92%
(+/-)-2-Amino-3-(7-ethyl-1H-indazol-5-yl)-propionic acid methyl ester
635712-52-6

(+/-)-2-Amino-3-(7-ethyl-1H-indazol-5-yl)-propionic acid methyl ester

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

1,1'-carbonyldiimidazole
530-62-1

1,1'-carbonyldiimidazole

(+/-)-3-(7-ethyl-1H-indazol-5-yl)-2-{[4-(2-oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidine-1-carbonyl]-amino}-propionic acid methyl ester
635710-84-8

(+/-)-3-(7-ethyl-1H-indazol-5-yl)-2-{[4-(2-oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidine-1-carbonyl]-amino}-propionic acid methyl ester

Conditions
ConditionsYield
Stage #1: (+/-)-2-Amino-3-(7-ethyl-1H-indazol-5-yl)-propionic acid methyl ester; 1,1'-carbonyldiimidazole In tetrahydrofuran at 0 - 20℃; for 0.333333h;
Stage #2: 3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one In tetrahydrofuran at 20℃;
92%
In tetrahydrofuran
1,1'-Carbonyl-di-(1,2,4-triazole)
41864-22-6

1,1'-Carbonyl-di-(1,2,4-triazole)

C10H11Br2NO2*ClH

C10H11Br2NO2*ClH

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

C24H26Br2N4O4

C24H26Br2N4O4

Conditions
ConditionsYield
With triethylamine In tetrahydrofuran90%
(R)-2-amino-3-[1-(2-trimethylsilanyl-ethanesulfonyl)-1H-indazol-5-yl]-propionic acid methyl ester
635713-85-8

(R)-2-amino-3-[1-(2-trimethylsilanyl-ethanesulfonyl)-1H-indazol-5-yl]-propionic acid methyl ester

di(succinimido) carbonate
74124-79-1

di(succinimido) carbonate

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

(R)-2-{[4-(2-Oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidine-1-carbonyl]-amino}-3-[1-(2-trimethylsilanyl-ethanesulfonyl)-1H-indazol-5-yl]-propionic acid methyl ester
635713-93-8

(R)-2-{[4-(2-Oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidine-1-carbonyl]-amino}-3-[1-(2-trimethylsilanyl-ethanesulfonyl)-1H-indazol-5-yl]-propionic acid methyl ester

Conditions
ConditionsYield
Stage #1: (R)-2-amino-3-[1-(2-trimethylsilanyl-ethanesulfonyl)-1H-indazol-5-yl]-propionic acid methyl ester; di(succinimido) carbonate With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 0.666667h;
Stage #2: 3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one In dichloromethane at 20℃;
90%
With N-ethyl-N,N-diisopropylamine In dichloromethane1.15 g (90%)
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

2-(4-chloro-3-trifluoromethyl-benzyl)-4-oxo-4-[4-(2-oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidin-1-yl]-butanoic acid methyl ester
688021-42-3

2-(4-chloro-3-trifluoromethyl-benzyl)-4-oxo-4-[4-(2-oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidin-1-yl]-butanoic acid methyl ester

Conditions
ConditionsYield
Stage #1: 2-(4-chloro-3-trifluoromethyl-benzyl)-succinic acid 1-methyl ester With benzotriazol-1-ol; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine In tetrahydrofuran; water at 20℃; for 0.166667h;
Stage #2: 3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one In tetrahydrofuran; water at 20℃; for 2h;
Stage #3: With sodium hydrogencarbonate In water
89%
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

1,1'-carbonyldiimidazole
530-62-1

1,1'-carbonyldiimidazole

3,5-dibromo-D-tyrosine methyl ester

3,5-dibromo-D-tyrosine methyl ester

(R)-N-(1-oxo-(3,4-dihydroquinazolin-2(1H)-yl)piperidinyl)-3,5-dibromotyrosine methylester

(R)-N-(1-oxo-(3,4-dihydroquinazolin-2(1H)-yl)piperidinyl)-3,5-dibromotyrosine methylester

Conditions
ConditionsYield
Stage #1: 1,1'-carbonyldiimidazole; 3,5-dibromo-D-tyrosine methyl ester With 1,2,4-Triazole In DMF (N,N-dimethyl-formamide) at 10 - 20℃; for 2h;
Stage #2: 3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one In DMF (N,N-dimethyl-formamide) at 50 - 55℃; for 1.5h;
88%
Stage #1: 1,1'-carbonyldiimidazole; 3,5-dibromo-D-tyrosine methyl ester With 1,2,4-Triazole In DMF (N,N-dimethyl-formamide) at 10 - 20℃; for 2h;
Stage #2: 3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one In DMF (N,N-dimethyl-formamide) at 20 - 55℃; for 1.5h; Product distribution / selectivity;
88%
With 1,2,4-Triazole In N,N-dimethyl-formamide51%
C15H22N2O2
936572-64-4

C15H22N2O2

di(succinimido) carbonate
74124-79-1

di(succinimido) carbonate

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

C29H37N5O4

C29H37N5O4

Conditions
ConditionsYield
In dichloromethane87%
4-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-3,3-bis-ethoxycarbonyl-butanoic acid
600725-56-2

4-(4-amino-3-chloro-5-trifluoromethyl-phenyl)-3,3-bis-ethoxycarbonyl-butanoic acid

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

2-(4-amino-3-chloro-5-trifluoromethyl-benzyl)-2-{2-oxo-2-[4-(2-oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidin-1-yl]-ethyl}-malonic acid diethyl ester
688020-58-8

2-(4-amino-3-chloro-5-trifluoromethyl-benzyl)-2-{2-oxo-2-[4-(2-oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidin-1-yl]-ethyl}-malonic acid diethyl ester

Conditions
ConditionsYield
With benzotriazol-1-ol; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; triethylamine In tetrahydrofuran at 20℃; for 16h;87%
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

6,7-dimethoxy-4-chloroquinazoline
13790-39-1

6,7-dimethoxy-4-chloroquinazoline

3-[1-(6,7-Dimethoxy-quinazolin-4-yl)-piperidin-4-yl]-3,4-dihydro-1H-quinazolin-2-one; hydrochloride
99161-60-1

3-[1-(6,7-Dimethoxy-quinazolin-4-yl)-piperidin-4-yl]-3,4-dihydro-1H-quinazolin-2-one; hydrochloride

Conditions
ConditionsYield
In methanol Heating;86%
(+/-)-2-amino-3-(7-ethyl-3 methyl-1H-indazol-5-yl)-propionic acid methyl ester
773887-24-4

(+/-)-2-amino-3-(7-ethyl-3 methyl-1H-indazol-5-yl)-propionic acid methyl ester

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
79098-75-2

3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one

(+/-)-3-(7-ethyl-3-methyl-1H-indazol-5-yl)-2-{[4-(2-oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidine-1-carbonyl]-amino}-propionic acid methyl ester
855776-60-2

(+/-)-3-(7-ethyl-3-methyl-1H-indazol-5-yl)-2-{[4-(2-oxo-1,4-dihydro-2H-quinazolin-3-yl)-piperidine-1-carbonyl]-amino}-propionic acid methyl ester

Conditions
ConditionsYield
Stage #1: (+/-)-2-amino-3-(7-ethyl-3 methyl-1H-indazol-5-yl)-propionic acid methyl ester; 1,1'-carbonyldiimidazole In tetrahydrofuran at 0 - 20℃; for 0.25h;
Stage #2: 3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one In tetrahydrofuran at 20℃;
86%

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