2--L-alanyl>-(1S,3S,5S)-2-azabicyclo<3.3.0>octane-3-carboxylic acid benzylester
Ramipril
Conditions | Yield |
---|---|
With hydrogen; palladium on activated charcoal In ethanol at 0 - 10℃; under 1838.94 - 2206.73 Torr; | 95% |
With hydrogen; palladium 10% on activated carbon In methanol at 20℃; under 760.051 Torr; for 1.5h; Product distribution / selectivity; | 80% |
With hydrogen; 3% Pd/C In ethanol at 20 - 25℃; under 760.051 Torr; for 1 - 3h; Product distribution / selectivity; | 78% |
Ramipril
Conditions | Yield |
---|---|
at 40℃; under 2 Torr; for 10 - 12h; Product distribution / selectivity; | 94% |
N-[(S)-1-carbethoxy-3-phenyl-propyl]-S-alaninoyl chloride hydrochloride
(2S,3aS,6aS)-1-(tert-butoxycarbonyl)octahydrocyclopenta[b]pyrrole-2-carboxylic acid
Ramipril
Conditions | Yield |
---|---|
Stage #1: (2S,3aS,6aS)-1-(tert-butoxycarbonyl)octahydrocyclopenta[b]pyrrole-2-carboxylic acid With sodium ethanolate; triethylamine In ethanol at -40℃; Stage #2: N-[(S)-1-carbethoxy-3-phenyl-propyl]-S-alaninoyl chloride hydrochloride In ethanol; dichloromethane at -50 - 20℃; for 1.08333h; Stage #3: With hydrogenchloride In water pH=4.2; Acidic aqueous solution; | 88% |
N-[1-(S)-ethoxycarbonyl-3-phenylpropyl]-L-alanine N-carboxyanhydride
Ramipril
Conditions | Yield |
---|---|
With sodium hydroxide In water at 10 - 15℃; pH=8.5 - 9.5; | 74% |
benzyl (2S,3AS,6AS)-octahydrocyclopenta[b]pyrrole-2-carboxylate hydrochloride
N-[1-(S)-ethoxycarbonyl-3-phenylpropyl]-L-alanine N-carboxyanhydride
Ramipril
Conditions | Yield |
---|---|
With acetic acid; triethylamine In ethyl acetate at 5 - 20℃; for 4h; | 74% |
[1(S)-(ethoxycarbonyl)-3-phenylpropyl]-(S)-alanine
Ramipril
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: triphenylphosphine / CH2Cl2 / 0.75 h 1.2: 45 percent / CH2Cl2 / 2.5 h / 25 - 30 °C 2.1: triethylamine / CH2Cl2 / 4 h / -15 - -10 °C 3.1: hydrogen / Pd/C View Scheme |
N-[1(S)-ethoxycarbonyl-3-phenylpropyl]-(S)-alanine-2'-benzothiazolylthio ester
Ramipril
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: triethylamine / CH2Cl2 / 4 h / -15 - -10 °C 2: hydrogen / Pd/C View Scheme |
ethyl (E)-4-oxo-4-phenyl-2-butenoate
Ramipril
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 1.) 2N NaOH, 2.) N(C2H5)3 / 1.) methylene chloride, 2.) ethanol, 2 h 2: 90 percent / H2, 1.6percent H2SO4 / 10percent Pd/C / acetic acid / 7 h / 30002.4 Torr / Ambient temperature 3: 95 percent / K2CO3, 25percent ethylmethylphosphinic anhydride / H2O; CH2Cl2 4: H2 / 10percent Pd/C / methanol / 0.5 h / 750.06 - 3750.3 Torr / Ambient temperature View Scheme |
benzyl (2S,3AS,6AS)-octahydrocyclopenta[b]pyrrole-2-carboxylate hydrochloride
Ramipril
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 95 percent / K2CO3, 25percent ethylmethylphosphinic anhydride / H2O; CH2Cl2 2: H2 / 10percent Pd/C / methanol / 0.5 h / 750.06 - 3750.3 Torr / Ambient temperature View Scheme |
(1RS,3RS,5RS)-2-Azabicyclo<3.3.0>octan-3-carbonsaeurebenzylester-hydrochlorid
Ramipril
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 67.8 g / 1.) 10percent NaOH 2.) 6N HCl / CH2Cl2; ethyl acetate 2: 95 percent / K2CO3, 25percent ethylmethylphosphinic anhydride / H2O; CH2Cl2 3: H2 / 10percent Pd/C / methanol / 0.5 h / 750.06 - 3750.3 Torr / Ambient temperature View Scheme |
(1'S,2S)-2-(1'-Methyl-2'-oxo-2'-phenylmethoxy-ethylamino)-4-oxo-4-phenyl-buttersaeure-ethylester
Ramipril
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 90 percent / H2, 1.6percent H2SO4 / 10percent Pd/C / acetic acid / 7 h / 30002.4 Torr / Ambient temperature 2: 95 percent / K2CO3, 25percent ethylmethylphosphinic anhydride / H2O; CH2Cl2 3: H2 / 10percent Pd/C / methanol / 0.5 h / 750.06 - 3750.3 Torr / Ambient temperature View Scheme |
N-[(1S)-1-ethoxycarbonyl-3-phenyl-3-oxopropyl]-L-alanine
Ramipril
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 95 percent / K2CO3, 25percent ethylmethylphosphinic anhydride / H2O; CH2Cl2 2: H2 / 10percent Pd/C / methanol / 0.5 h / 750.06 - 3750.3 Torr / Ambient temperature View Scheme |
(1RS,3RS,5RS)-2-Azabicyclo<3.3.0>octan-3-carbonsaeure-hydrochlorid
N-[1-(S)-ethoxycarbonyl-3-phenylpropyl]-L-alanine N-carboxyanhydride
A
ramipril
B
Ramipril
Conditions | Yield |
---|---|
With triethylamine In dichloromethane at 20℃; |
(S,S,S)-2-azabicyclo<3.3.0>octane-3-carboxylic acid hydrochloride
N-[1-(S)-ethoxycarbonyl-3-phenylpropyl]-L-alanine N-carboxyanhydride
Ramipril
Conditions | Yield |
---|---|
Stage #1: (2S)-2,3,3a,4,5,6-hexahydrocyclopenta[b]pyrrole-2-carboxylic acid; (S,S,S)-2-azabicyclo<3.3.0>octane-3-carboxylic acid hydrochloride With sodium hydroxide; hydrogenation catalyst In water at 20 - 25℃; pH=10 - 11; Stage #2: N-[1-(S)-ethoxycarbonyl-3-phenylpropyl]-L-alanine N-carboxyanhydride In water at 20 - 25℃; for 3 - 4h; pH=10 - 11; Stage #3: With hydrogenchloride In water at 15 - 20℃; for 2.5 - 2.75h; pH=4.4 - 5.2; Product distribution / selectivity; |
benzyl (1S,3S,5S)-2-azabicyclo<3.3.0>octane-3-carboxylate
[1(S)-(ethoxycarbonyl)-3-phenylpropyl]-(S)-alanine
Ramipril
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: hydrogenchloride; (chloromethylene)dimethyliminium chloride / N,N-dimethyl-formamide; dichloromethane / 0.42 h / -10 °C / Inert atmosphere 1.2: Inert atmosphere 2.1: hydrogen; palladium 10% on activated carbon / methanol / 20 °C / Inert atmosphere View Scheme |
Ramipril
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 5%-palladium/activated carbon; hydrogen / acetic acid / 40 - 60 °C / 3750.38 - 4500.45 Torr 2: thionyl chloride / 0 - 30 °C 3: benzotriazol-1-ol; 4-methyl-morpholine; dicyclohexyl-carbodiimide / toluene / 1 h / 0 - 5 °C 4: 5%-palladium/activated carbon; hydrogen / ethanol / 20 - 22 °C / 2327.23 - 2585.81 Torr View Scheme |
(S,S,S)-2-azabicyclo<3.3.0>octane-3-carboxylic acid hydrochloride
Ramipril
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: thionyl chloride / 0 - 30 °C 2: benzotriazol-1-ol; 4-methyl-morpholine; dicyclohexyl-carbodiimide / toluene / 1 h / 0 - 5 °C 3: 5%-palladium/activated carbon; hydrogen / ethanol / 20 - 22 °C / 2327.23 - 2585.81 Torr View Scheme |
[1(S)-(ethoxycarbonyl)-3-phenylpropyl]-(S)-alanine
benzyl (2S,3AS,6AS)-octahydrocyclopenta[b]pyrrole-2-carboxylate hydrochloride
Ramipril
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: benzotriazol-1-ol; 4-methyl-morpholine; dicyclohexyl-carbodiimide / toluene / 1 h / 0 - 5 °C 2: 5%-palladium/activated carbon; hydrogen / ethanol / 20 - 22 °C / 2327.23 - 2585.81 Torr View Scheme |
Ramipril
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1.1: hydrogen / water / 55 - 60 °C / 4125.41 - 4500.45 Torr 2.1: water / 1 h / 15 - 55 °C 2.2: 0 - 5 °C 3.1: benzotriazol-1-ol; 4-methyl-morpholine; dicyclohexyl-carbodiimide / toluene / 1 h / 0 - 5 °C 4.1: 5%-palladium/activated carbon; hydrogen / ethanol / 20 - 22 °C / 2327.23 - 2585.81 Torr View Scheme |
(±)-methyl 2-(acetylamino)-3-(2-oxocyclopentyl)-propionate
Ramipril
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: immozyme alkaline serine endopeptidase; sodium carbonate / water / 20 h / 24 - 26 °C / pH 6.2 - 6.8 / Enzymatic reaction 2: hydrogenchloride / water / 3 h / Reflux 3: 5%-palladium/activated carbon; hydrogen / acetic acid / 40 - 60 °C / 3750.38 - 4500.45 Torr 4: thionyl chloride / 0 - 30 °C 5: benzotriazol-1-ol; 4-methyl-morpholine; dicyclohexyl-carbodiimide / toluene / 1 h / 0 - 5 °C 6: 5%-palladium/activated carbon; hydrogen / ethanol / 20 - 22 °C / 2327.23 - 2585.81 Torr View Scheme |
Ramipril
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1.1: water / 1 h / 15 - 55 °C 1.2: 0 - 5 °C 2.1: benzotriazol-1-ol; 4-methyl-morpholine; dicyclohexyl-carbodiimide / toluene / 1 h / 0 - 5 °C 3.1: 5%-palladium/activated carbon; hydrogen / ethanol / 20 - 22 °C / 2327.23 - 2585.81 Torr View Scheme |
(2S,3aS,6aS)-1-(tert-butoxycarbonyl)octahydrocyclopenta[b]pyrrole-2-carboxylic acid
N-[1-(S)-ethoxycarbonyl-3-phenylpropyl]-L-alanine N-carboxyanhydride
Ramipril
Ramipril
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1.1: water / Reflux 2.1: hydrogen / water / 55 - 60 °C / 4125.41 - 4500.45 Torr 3.1: water / 1 h / 15 - 55 °C 3.2: 0 - 5 °C 4.1: benzotriazol-1-ol; 4-methyl-morpholine; dicyclohexyl-carbodiimide / toluene / 1 h / 0 - 5 °C 5.1: 5%-palladium/activated carbon; hydrogen / ethanol / 20 - 22 °C / 2327.23 - 2585.81 Torr View Scheme |
Ramipril
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: hydrogenchloride / water / 3 h / Reflux 2: 5%-palladium/activated carbon; hydrogen / acetic acid / 40 - 60 °C / 3750.38 - 4500.45 Torr 3: thionyl chloride / 0 - 30 °C 4: benzotriazol-1-ol; 4-methyl-morpholine; dicyclohexyl-carbodiimide / toluene / 1 h / 0 - 5 °C 5: 5%-palladium/activated carbon; hydrogen / ethanol / 20 - 22 °C / 2327.23 - 2585.81 Torr View Scheme |
N-[1-(S)-ethoxycarbonyl-3-phenylpropyl]-L-alanine N-carboxyanhydride
Ramipril
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: sodium hydrogencarbonate / water; ethyl acetate / 0.08 h / 15 °C 1.2: 1.08 h / 20 °C 2.1: hydrogen; palladium 10% on activated carbon / methanol / 15 - 20 °C / 760.05 Torr View Scheme |
[1(S)-(ethoxycarbonyl)-3-phenylpropyl]-(S)-alanine
Ramipril
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: hydrogenchloride; thionyl chloride; N,N-dimethyl-formamide / dichloromethane / 0 h / -10 - -5 °C / Inert atmosphere 1.2: 0.01 h 2.1: hydrogen; palladium 10% on activated carbon / methanol / 15 - 20 °C / 760.05 Torr View Scheme |
Conditions | Yield |
---|---|
In water; isopropyl alcohol at 20℃; for 0.5h; | 98% |
In butanone for 0.5h; Product distribution / selectivity; Heating / reflux; |
Ramipril
Conditions | Yield |
---|---|
With water In di-isopropyl ether for 1 - 1.5h; Product distribution / selectivity; | 86% |
With water for 1 - 1.5h; Product distribution / selectivity; | 86% |
With water In formaldehyde diethyl acetal for 1 - 1.5h; Product distribution / selectivity; | 85% |
Conditions | Yield |
---|---|
In water; ethyl acetate at 20 - 40℃; | 79% |
In ethyl acetate at 10℃; for 1h; | 67% |
In ethyl acetate at 50 - 70℃; |
Ramipril
2-amino-2-hydroxymethyl-1,3-propanediol
ramipril tris(hydroxymethyl)aminomethane salt
Conditions | Yield |
---|---|
In ethanol; water at 20 - 40℃; | 75% |
1,1-Diphenylethylene
Ramipril
Conditions | Yield |
---|---|
With [4,4′-bis(1,1-dimethylethyl)-2,2′-bipyridine-N1,N1′]bis{3,5-difluoro-2-[5-(trifluoromethyl)-2-pyridinyl-κN]phenyl-κC}iridium(III) hexafluorophosphate; cesium fluoride In N,N-dimethyl acetamide at 25 - 30℃; for 8h; Irradiation; Inert atmosphere; Schlenk technique; Molecular sieve; regioselective reaction; | 72% |
Ramipril
Conditions | Yield |
---|---|
With platinum(IV) oxide; hydrogen; acetic acid In ethanol at 30℃; under 1292.9 - 1551.49 Torr; for 24h; Temperature; | 66% |
Ramipril
ramipril-ammonia
Conditions | Yield |
---|---|
With ammonia In ethanol; ethyl acetate at 32.5 - 37.5℃; for 1h; | 57% |
Ramipril
Conditions | Yield |
---|---|
With [4,4’-bis(1,1-dimethylethyl)-2,2’-bipyridine-N1,N1‘]bis [3,5-difluoro-2-[5-(trifluoromethyl)-2-pyridinyl-N]phenyl-C]iridium(III) hexafluorophosphate; caesium carbonate In N,N-dimethyl acetamide; water for 24h; Sealed tube; Irradiation; Inert atmosphere; | 31% |
Ramipril
ramiprilate
Conditions | Yield |
---|---|
at 37℃; esterase from various rat tissue homogenates or plasma; | |
With porcine liver esterase In phosphate buffer at 37℃; pH=8.6; | |
Stage #1: Ramipril With sodium hydroxide In methanol; water at 60℃; for 0.0833333h; Stage #2: In methanol; water Acidic conditions; | |
With recombinant human carboxylesterase 1; water In aq. phosphate buffer at 37℃; for 0.133333h; Kinetics; Enzymatic reaction; |
Ramipril
Conditions | Yield |
---|---|
In isopropyl alcohol Heating; Yield given; | |
Stage #1: Ramipril With hydrogenchloride; water In methanol at 80℃; for 30h; Stage #2: In methanol Acidic conditions; |
Conditions | Yield |
---|---|
In butanone for 0.5h; Heating / reflux; |
Ramipril
(2S,3aS,6aS)-1[(S)-N-[(S)-1-carboxy-3-phenylpropyl]alanyl]octahydrocyclopenta[b]pyrrole-2-carboxylic acid 1-ethyl ester sodium salt
Conditions | Yield |
---|---|
With sodium hydrogencarbonate In water at 20℃; for 1h; |
Ramipril
Conditions | Yield |
---|---|
With calcium hydroxide In butanone for 1h; Heating / reflux; |
Ramipril
(R)-2-[(2-aminoethoxy)methyl]4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylic acid 3-ethyl 5-methyl ester
ramipril-amlodipine salt
Conditions | Yield |
---|---|
In ethyl acetate at 20℃; for 0.0333333h; |
Conditions | Yield |
---|---|
In ethyl acetate at 20℃; for 0.0333333h; |
The IUPAC name of Ramipril is (2S,3aS,6aS)-1-[(2S)-2-[[(2S)-1-ethoxy-1-oxo-4-phenylbutan-2-yl]amino]propanoyl]-3,3a,4,5,6,6a-hexahydro-2H-cyclopenta[b]pyrrole-2-carboxylic acid. With the CAS registry number 87333-19-5, it is also named as Cyclopenta(b)pyrrole-2-carboxylic acid, 1-(2-((1-(ethoxycarbonyl)-3-phenylpropyl)amino)-1-oxopropyl)octahydro-, (2S-(1(R*(R*)),2alpha,3abeta,6abeta))-; Lostapres. The product's categories are active pharmaceutical ingredients, ramipril, aromatics, heterocycles, intermediates & fine chemicals, pharmaceuticals and angiotensin. It is white solid.
The other characteristics of this product can be summarized as: (1)ACD/LogP: 3.41; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.24; (4)ACD/BCF (pH 5.5): 1.57; (5)ACD/BCF (pH 7.4): 1; (6)ACD/KOC (pH 5.5): 11.66; (7)ACD/KOC (pH 7.4): 1; (8)#H bond acceptors: 7; (9)#H bond donors: 2; (10)#Freely Rotating Bonds: 10; (11)Index of Refraction: 1.555; (12)Molar Refractivity: 111.41 cm3; (13)Molar Volume: 346.8 cm3; (14)Polarizability: 44.16×10-24 cm3; (15)Surface Tension: 50.1 dyne/cm; (16)Enthalpy of Vaporization: 96.09 kJ/mol; (17)Vapour Pressure: 4.86E-16 mmHg at 25°C; (18)Rotatable Bond Count: 10; (19)Exact Mass: 416.231122; (20)MonoIsotopic Mass: 416.231122; (21)Topological Polar Surface Area: 95.9; (22)Heavy Atom Count: 30.
Uses of Ramipril: It is an angiotensin-converting enzyme (ACE) inhibitor which is used to treat hypertension and congestive heart failure. ACE inhibitors lower the production of angiotensin II, therefore relaxing arterial muscles while at the same time enlarging the arteries, allowing the heart to pump blood more easily, and increasing blood flow due to more blood being pumped into and through larger passageways.
When you are using this chemical, please be cautious about it as the following:
It is irritating to eyes and skin. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If you want to contact this product, you must wear suitable gloves and eye/face protection.
People can use the following data to convert to the molecule structure.
1. SMILES: O=C(OCC)[C@@H](N[C@H](C(=O)N1[C@H](C(=O)O)C[C@@H]2CCC[C@H]12)C)CCc3ccccc3;
2. InChI: InChI=1/C23H32N2O5/c1-3-30-23(29)18(13-12-16-8-5-4-6-9-16)24-15(2)21(26)25-19-11-7-10-17(19)14-20(25)22(27)28/h4-6,8-9,15,17-20,24H,3,7,10-14H2,1-2H3,(H,27,28)/t15-,17-,18-,19-,20-/m0/s1.
The following is the toxicity data which has been tested.
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
dog | LD50 | intravenous | > 250mg/kg (250mg/kg) | New Cardiovascular Drugs. Vol. 5, Pg. 57, 1987. | |
dog | LD50 | oral | > 1gm/kg (1000mg/kg) | Arzneimittel-Forschung. Drug Research. Vol. 38, Pg. 14, 1988. | |
mouse | LD50 | intravenous | 1100mg/kg (1100mg/kg) | New Cardiovascular Drugs. Vol. 5, Pg. 57, 1987. | |
mouse | LD50 | oral | 10048mg/kg (10048mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Arzneimittel-Forschung. Drug Research. Vol. 38, Pg. 14, 1988. |
rat | LD50 | intravenous | 600mg/kg (600mg/kg) | New Cardiovascular Drugs. Vol. 5, Pg. 57, 1987. | |
rat | LD50 | oral | > 10gm/kg (10000mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) | Arzneimittel-Forschung. Drug Research. Vol. 38, Pg. 14, 1988. |
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