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
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inquiryJ&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
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inquiryWe 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
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inquiryLower 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
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inquiryAnsciep 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
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inquiry3-(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
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inquiry1.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
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inquiryPrice, 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
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inquiryWatson 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
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inquiryFor 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,
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inquiry1. 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
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inquiryFINETECH 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
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inquiryDebyesci 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
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inquiryhigh quality,stable supply,all in stock Application:Drug Discovery
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inquiry1-benzyl-4-(1,2,3,4-tetrahydro-2-oxo-3-quinazolinyl)piperidine
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
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
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
With trifluoroacetic acid In dichloromethane at 20℃; | 92% |
2-nitro-benzaldehyde
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
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
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
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
1,1'-carbonyldiimidazole
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
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
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: hydrogen / palladium on activated charcoal / ethanol 2: acetonitrile / Reflux View Scheme |
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
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
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
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
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
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
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
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
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
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
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
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
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
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)
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
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran | 100% |
1,1'-Carbonyl-di-(1,2,4-triazole)
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran | 100% |
1,1'-Carbonyl-di-(1,2,4-triazole)
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran | 100% |
1,1'-Carbonyl-di-(1,2,4-triazole)
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran | 100% |
Conditions | Yield |
---|---|
With benzotriazol-1-ol; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine In tetrahydrofuran | 100% |
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
(+/-)-4-(3,4-dimethoxyphenyl)-3-methoxycarbonylbutanoic acid
Conditions | Yield |
---|---|
With benzotriazol-1-ol; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine In tetrahydrofuran | 100% |
β-(methoxycarbonyl)-1-naphthalenebutanoic acid
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
With benzotriazol-1-ol; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine In tetrahydrofuran | 100% |
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
With benzotriazol-1-ol; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine In tetrahydrofuran | 100% |
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
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 | Yield |
---|---|
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
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
Conditions | Yield |
---|---|
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
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
With benzotriazol-1-ol; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; triethylamine In tetrahydrofuran; N,N-dimethyl-formamide | 98% |
3,5-dibromo-4-hydroxy-β-(methoxycarbonyl)-benzenebutanoic acid
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
With benzotriazol-1-ol; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine In tetrahydrofuran | 98% |
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
Conditions | Yield |
---|---|
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
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 | Yield |
---|---|
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)
2-amino-3-(3,4-diethyl-phenyl)-propionic acid methylester
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
Conditions | Yield |
---|---|
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
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
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
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
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
Conditions | Yield |
---|---|
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 |
Conditions | Yield |
---|---|
With O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; triethylamine In tetrahydrofuran; N,N-dimethyl-formamide | 93% |
Conditions | Yield |
---|---|
With benzotriazol-1-ol; O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine In tetrahydrofuran | 92% |
(+/-)-2-Amino-3-(7-ethyl-1H-indazol-5-yl)-propionic acid methyl ester
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
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
Conditions | Yield |
---|---|
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)
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran | 90% |
(R)-2-amino-3-[1-(2-trimethylsilanyl-ethanesulfonyl)-1H-indazol-5-yl]-propionic acid methyl ester
di(succinimido) carbonate
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
Conditions | Yield |
---|---|
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 dichloromethane | 1.15 g (90%) |
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
Conditions | Yield |
---|---|
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
1,1'-carbonyldiimidazole
Conditions | Yield |
---|---|
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-formamide | 51% |
C15H22N2O2
di(succinimido) carbonate
3-piperidin-4-yl-3,4-dihydro-1H-quinazoline-2-one
Conditions | Yield |
---|---|
In dichloromethane | 87% |
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
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 | Yield |
---|---|
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
6,7-dimethoxy-4-chloroquinazoline
3-[1-(6,7-Dimethoxy-quinazolin-4-yl)-piperidin-4-yl]-3,4-dihydro-1H-quinazolin-2-one; hydrochloride
Conditions | Yield |
---|---|
In methanol Heating; | 86% |
(+/-)-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
(+/-)-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 | Yield |
---|---|
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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