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CAS No.: | 486460-32-6 |
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Name: | Sitagliptin |
Article Data: | 111 |
Molecular Structure: | |
Formula: | C16H15F6N5O |
Molecular Weight: | 407.318 |
Synonyms: | 1,2,4-Triazolo[4,3-a]pyrazine,7-[(3R)-3-amino-1-oxo-4-(2,4,5-trifluorophenyl)butyl]-5,6,7,8-tetrahydro-3-(trifluoromethyl)-(9CI);(2R)-4-Oxo-4-[3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl]-1-(2,4,5-trifluorophenyl)butan-2-amine;(3R)-3-amino-1-(3-(trifluoromethyl)-5,6,7,8-tetrahydro-1,2,4-triazolo(4,3-a)pyrazin-7-yl)-4-(2,4,5-trifluorophenyl)butan-1-one;1-Butanone,3-amino-1-[5,6-dihydro-3-(trifluoromethyl)-1,2,4-triazolo[4,3-a]pyrazin-7(8H)-yl]-4-(2,4,5-trifluorophenyl)-,(3R)-; |
EINECS: | 690-730-1 |
Density: | 1.61 g/cm3 |
Melting Point: | 114.1-115.7 °C |
Boiling Point: | 529.9 °C at 760 mmHg |
Flash Point: | 274.3 °C |
Appearance: | yellow grease |
PSA: | 77.04000 |
LogP: | 2.65470 |
(R)-benzyl (4-oxo-4-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-yl)carbamate
sitagliptin
Conditions | Yield |
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With hydrogen; palladium 10% on activated carbon In tetrahydrofuran at 20℃; under 760.051 Torr; | 100% |
With hydrogen; palladium-on-charcoal In tetrahydrofuran; water at 20℃; under 760.051 Torr; | 100% |
With hydrogen; palladium 10% on activated carbon In methanol | 99% |
With methylmagnesium bromide; hydrogen; palladium diacetate; nickel diacetate In water at 45℃; for 20h; | 79% |
7-(1-oxo-3((R)-amino)-4-(2,4,5-trifluorophenyl)butyl)-3-(trifluoromethyl)-5,6,7,8-tetrahydro-1,2,4-triazolo[4,3-a]pyrazine di-p-tolyl-L-tartarate
sitagliptin
Conditions | Yield |
---|---|
With sodium hydroxide In ethyl acetate at 10℃; Product distribution / selectivity; | 99.5% |
sitagliptin
Conditions | Yield |
---|---|
With formic acid; Pt/Al2O3; hydrogen In methanol at 20℃; Autoclave; Large scale; | 97.8% |
Stage #1: (3R)-3-[(benzyIoxy)amino]-l-[3-(trifluoromethyl)-5H,6H,7H,8H [1 ,2,4] triazolo [4,3-a] pyrazin-7-yl]-4-(2,4,5-trifluorophenyl) butan-1-one With hydrogenchloride; palladium 10% on activated carbon In ethanol; water at 30℃; under 2068.65 Torr; for 12 - 14h; Stage #2: With sodium hydroxide In ethanol; water at 12 - 14℃; pH=13; Stage #3: With phosphoric acid In ethanol; water at 45℃; | 66% |
(Z)-3-amino-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)but-2-en-1-one
sitagliptin
Conditions | Yield |
---|---|
Stage #1: (Z)-3-amino-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)but-2-en-1-one With ammonium chloride; chloro(1,5-cyclooctadiene)rhodium(I) dimer; (R)-1-[(S)-2-(di-tert-butylphosphino)ferrocenyl]ethyl-di-2-methylphenylphosphine In methanol at 20℃; for 1h; Stage #2: With hydrogen In methanol at 50℃; under 5171.62 Torr; for 18h; Product distribution / selectivity; | 97% |
With di-μ-chloro-bis(1,5-cyclooctadiene)dirhodium; hydrogen; (R,S)-t-bu Josiphos In methanol at 20 - 50℃; under 10343.2 Torr; for 14h; | 93% |
With chloro(1,5-cyclooctadiene)rhodium(I) dimer; (2S)-1-[(1S)-1-[bis(1,1-dimethylethyl)phosphino]ethyl]-2-(diphenylphosphino)ferrocene; hydrogen; ammonium chloride In methanol at 50℃; under 13689.1 Torr; Inert atmosphere; enantioselective reaction; | 82% |
3-trifluoromethyl-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine
sitagliptin
Conditions | Yield |
---|---|
With triethylamine In tetrahydrofuran for 1h; Reflux; | 97% |
(R)-tert-butyl 4-oxo-4-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-ylcarbamate
sitagliptin
Conditions | Yield |
---|---|
With hydrogenchloride In isopropyl alcohol at 20 - 25℃; | 96.88% |
With hydrogenchloride In methanol at 15 - 45℃; for 3h; | 95.81% |
With hydrogenchloride; methanol In water at 50℃; for 4h; | 95% |
C23H21F6N5O
sitagliptin
Conditions | Yield |
---|---|
With Pt/Al2O3; hydrogen; acetic acid In methanol at 20℃; Autoclave; Large scale; | 96.7% |
(3R)-3-[(1,1-dimethylethoxycarbonyl)amino]-4-(2,4,5-trifluorophenyl)butanoic acid
3-(trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine hydrochloride
sitagliptin
Conditions | Yield |
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Stage #1: (3R)-3-[(1,1-dimethylethoxycarbonyl)amino]-4-(2,4,5-trifluorophenyl)butanoic acid With triethylamine In dichloromethane for 0.166667h; Stage #2: With benzotriazol-1-ol; dicyclohexyl-carbodiimide In dichloromethane at 25 - 30℃; for 4h; Stage #3: 3-(trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine hydrochloride Further stages; | 96.5% |
(R,R)-N-benzyl-N-(α-methylbenzyl)-1-(2',4',5'-trifluorophenyl)-4-oxo-4-{3''-(trifluoromethyl)-5'',6''-dihydro-1'',2'',4''-triazolo[4,3-α]pyrazin-7''(8''H)-yl}butan-2-amine
sitagliptin
Conditions | Yield |
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With 30% w/w Pd(OH)2/C; hydrogen In methanol under 3800.26 Torr; for 24h; | 96% |
With 5%-palladium/activated carbon; hydrogen; acetic acid In methanol at 50℃; under 19001.3 Torr; for 48h; | 95% |
(3R)-3-[(1,1-dimethylethoxycarbonyl)amino]-4-(2,4,5-trifluorophenyl)butanoic acid
sitagliptin
Conditions | Yield |
---|---|
Stage #1: (3R)-3-[(1,1-dimethylethoxycarbonyl)amino]-4-(2,4,5-trifluorophenyl)butanoic acid With thionyl chloride In ethyl acetate at 26℃; for 2h; Stage #2: 3-(trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-α]pyrazine hydrochloride With triethylamine In ethyl acetate at 25℃; Solvent; Temperature; | 96% |
Stage #1: 3-(trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-α]pyrazine hydrochloride; (3R)-3-[(1,1-dimethylethoxycarbonyl)amino]-4-(2,4,5-trifluorophenyl)butanoic acid With 1-methyl-1H-imidazole; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride at 0 - 20℃; for 16h; Stage #2: With hydrogenchloride In ethanol at 20℃; for 18h; Stage #3: With sodium hydroxide In ethanol; water pH=10 - 12; Time; Solvent; | 90% |
Stage #1: (3R)-3-[(1,1-dimethylethoxycarbonyl)amino]-4-(2,4,5-trifluorophenyl)butanoic acid With pivaloyl chloride; sodium carbonate In toluene Cooling; Stage #2: 3-(trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-α]pyrazine hydrochloride In toluene Stage #3: With hydrogenchloride In water; toluene Reagent/catalyst; | 4.4 g |
Sitagliptin was approved by the U.S. Food and Drug Administration (FDA) on October 17, 2006 and is marketed in the US as Januvia by Merck & Co. On April 2, 2007, the FDA approved an oral combination of sitagliptin and metformin marketed in the US as Janumet.
Sitagliptin(CAS NO.486460-32-6), its Synonyms are Januvia; 1,2,4-Triazolo(4,3-a)pyrazine, 7-((3R)-3-amino-1-oxo-4-(2,4,5-trifluorophenyl)butyl)-5,6,7,8-tetrahydor-3-(trifluoromethyl)-; Xelevia. It belongs to the Product Categories of API; Pharmaceutical intermediate. Sitagliptin is used either alone or in combination with other oral antihyperglycemic agents (such as metformin or a thiazolidinedione) for treatment of diabetes mellitus type 2.
Physical properties about Sitagliptin are: (1)ACD/LogP: 2.055; (2)ACD/LogD (pH 5.5): 0.64; (3)ACD/LogD (pH 7.4): 1.93; (4)ACD/BCF (pH 5.5): 1.00; (5)ACD/BCF (pH 7.4): 16.25; (6)ACD/KOC (pH 5.5): 12.00 ; (7)ACD/KOC (pH 7.4): 236.58; (8)#H bond acceptors: 6; (9)#H bond donors: 2; (10)#Freely Rotating Bonds: 5; (11)Index of Refraction: 1.59; (12)Molar Refractivity: 85.18 cm3; (13)Molar Volume: 252.363 cm3; (14)Polarizability: 33.768 10-24cm3; (15)Surface Tension: 42.4780006408691 dyne/cm; (16)Density: 1.614 g/cm3; (17)Flash Point: 274.277 °C ; (18)Enthalpy of Vaporization: 80.506 kJ/mol; (19)Boiling Point: 529.905 °C at 760 mmHg
You can still convert the following datas into molecular structure:
(1)InChI=1S/C16H15F6N5O/c17-10-6-12(19)11(18)4-8(10)3-9(23)5-14(28)26-1-2-27-13(7-26)24-25-15(27)16(20,21)22/h4,6,9H,1-3,5,7,23H2/t9-/m1/s1;
(2)InChIKey=MFFMDFFZMYYVKS-SECBINFHSA-N;
(3)Smilesc1(c(F)cc(c(F)c1)C[C@H](CC(N1CCn2c(C1)nnc2C(F)(F)F)=O)N)F