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CAS No.: | 247068-84-4 |
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Name: | (S)-2-amino-4-methyl-1-((R)-2-methyloxiran-2-yl)pentan-1-one |
Article Data: | 11 |
Molecular Structure: | |
Formula: | C9H17NO2 |
Molecular Weight: | 171.239 |
Synonyms: | (S)-2-aMino-4-Methyl-1-((R)-2-Methyloxiran-2-yl)pentan-1-one;(2S)-2-Amino-4-methyl-1-[(2R)-2-methyloxiranyl]-1-pentanone;(S)-2-aMino-4-Methyl-1-((R)-2-Methyloxiran-2-yl)pentan-1-one trifluoroacetic acid |
Density: | 1.041±0.06 g/cm3(Predicted) |
Boiling Point: | 243.1±35.0 °C(Predicted) |
PSA: | 55.62000 |
LogP: | 1.41810 |
tert-butyl ((2S)-4-methyl-1-((2R)-2-methyloxirane-2-yl)-1-oxopentan-2-yl)carbamate
(2S)-2-amino-4-methyl-1-[(2R)-2-methyloxiran-2-yl]pentan-1-one
Conditions | Yield |
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With trifluoroacetic acid at 20℃; for 0.0333333 - 0.333333h; | |
With trifluoroacetic acid In dichloromethane at 25℃; for 1.5h; Inert atmosphere; | |
With trifluoroacetic acid In dichloromethane at 0 - 20℃; for 1h; |
N-tert-butoxycarbonyl-L-leucine
(2S)-2-amino-4-methyl-1-[(2R)-2-methyloxiran-2-yl]pentan-1-one
Conditions | Yield |
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Multi-step reaction with 4 steps 1: (benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate; triethylamine / dichloromethane / 3 h / 25 °C / Inert atmosphere 2: tetrahydrofuran / 6 h / 0 °C / Inert atmosphere 3: potassium peroxymonosulfate; 1,1,1-trifluoro-2-propanone; sodium hydrogencarbonate / water; acetonitrile / Inert atmosphere 4: trifluoroacetic acid / dichloromethane / 1.5 h / 25 °C / Inert atmosphere View Scheme | |
Multi-step reaction with 6 steps 1.1: benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride / dichloromethane / 0.5 h / 0 °C 1.2: 3 h / 0 °C 2.1: tetrahydrofuran / 0 °C / Inert atmosphere 3.1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol; tetrahydrofuran / 2 h / 0 - 20 °C / Inert atmosphere 4.1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 3 h / 0 °C 5.1: Dess-Martin periodane / dichloromethane / 0 - 20 °C / Inert atmosphere 6.1: trifluoroacetic acid / dichloromethane / 1 h / 0 - 20 °C View Scheme | |
Multi-step reaction with 4 steps 1.1: 4-methyl-morpholine; chloroformic acid ethyl ester / dichloromethane / 0.33 h / -15 - -10 °C / Inert atmosphere 1.2: 2 h / -15 - -10 °C 2.1: magnesium; iodine / tetrahydrofuran / 2.5 h / 50 - 55 °C / Inert atmosphere 2.2: 8.25 h / 0 - 30 °C 3.1: potassium carbonate; benzonitrile; dihydrogen peroxide / methanol / 6 h / 25 - 30 °C 4.1: trifluoroacetic acid / dichloromethane / 3 h / 5 - 10 °C / Inert atmosphere View Scheme |
N-(tert-butoxycarbonyl)-L-leucine-N'-methoxy-N'-methylamide
(2S)-2-amino-4-methyl-1-[(2R)-2-methyloxiran-2-yl]pentan-1-one
Conditions | Yield |
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Multi-step reaction with 3 steps 1: tetrahydrofuran / 6 h / 0 °C / Inert atmosphere 2: potassium peroxymonosulfate; 1,1,1-trifluoro-2-propanone; sodium hydrogencarbonate / water; acetonitrile / Inert atmosphere 3: trifluoroacetic acid / dichloromethane / 1.5 h / 25 °C / Inert atmosphere View Scheme | |
Multi-step reaction with 5 steps 1: tetrahydrofuran / 0 °C / Inert atmosphere 2: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol; tetrahydrofuran / 2 h / 0 - 20 °C / Inert atmosphere 3: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 3 h / 0 °C 4: Dess-Martin periodane / dichloromethane / 0 - 20 °C / Inert atmosphere 5: trifluoroacetic acid / dichloromethane / 1 h / 0 - 20 °C View Scheme | |
Multi-step reaction with 3 steps 1: tetrahydrofuran / 6 h / 0 °C / Inert atmosphere 2: sodium hydrogencarbonate; Oxone; 1,1,1-trifluoro-2-propanone / water; acetonitrile / 1.5 h / -10 °C / Inert atmosphere 3: trifluoroacetic acid / dichloromethane / 1.5 h / 25 °C / Inert atmosphere View Scheme |
tert-butyl [(1S)-3-methyl-1-(2-methylpropyl)-2-oxobut-3-en-1-yl]carbamate
(2S)-2-amino-4-methyl-1-[(2R)-2-methyloxiran-2-yl]pentan-1-one
Conditions | Yield |
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Multi-step reaction with 4 steps 1: cerium(III) chloride heptahydrate; sodium tetrahydroborate / methanol; tetrahydrofuran / 2 h / 0 - 20 °C / Inert atmosphere 2: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 3 h / 0 °C 3: Dess-Martin periodane / dichloromethane / 0 - 20 °C / Inert atmosphere 4: trifluoroacetic acid / dichloromethane / 1 h / 0 - 20 °C View Scheme | |
Multi-step reaction with 2 steps 1: sodium hydrogencarbonate; Oxone; 1,1,1-trifluoro-2-propanone / water; acetonitrile / 1.5 h / -10 °C / Inert atmosphere 2: trifluoroacetic acid / dichloromethane / 1.5 h / 25 °C / Inert atmosphere View Scheme | |
Multi-step reaction with 2 steps 1: potassium carbonate; benzonitrile; dihydrogen peroxide / methanol / 6 h / 25 - 30 °C 2: trifluoroacetic acid / dichloromethane / 3 h / 5 - 10 °C / Inert atmosphere View Scheme |
tert-butyl N-[(4S)-3-hydroxy-2,6-dimethylhept-1-en-4-yl]carbamate
(2S)-2-amino-4-methyl-1-[(2R)-2-methyloxiran-2-yl]pentan-1-one
Conditions | Yield |
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Multi-step reaction with 3 steps 1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 3 h / 0 °C 2: Dess-Martin periodane / dichloromethane / 0 - 20 °C / Inert atmosphere 3: trifluoroacetic acid / dichloromethane / 1 h / 0 - 20 °C View Scheme | |
Multi-step reaction with 3 steps 1: 3-chloro-benzenecarboperoxoic acid / dichloromethane / 3 h / 0 °C 2: Dess-Martin periodane / dichloromethane / 10 h / 0 °C / Inert atmosphere 3: trifluoroacetic acid / dichloromethane / 0 - 20 °C View Scheme |
tert-butyl N-[(2S)-1-(-2-methyloxirane-2-yl)-1-hydroxy-4-methylpentan-2-yl]carbamate
(2S)-2-amino-4-methyl-1-[(2R)-2-methyloxiran-2-yl]pentan-1-one
Conditions | Yield |
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Multi-step reaction with 2 steps 1: Dess-Martin periodane / dichloromethane / 0 - 20 °C / Inert atmosphere 2: trifluoroacetic acid / dichloromethane / 1 h / 0 - 20 °C View Scheme | |
Multi-step reaction with 2 steps 1: Dess-Martin periodane / dichloromethane / 10 h / 0 °C / Inert atmosphere 2: trifluoroacetic acid / dichloromethane / 0 - 20 °C View Scheme |
L-leucine
(2S)-2-amino-4-methyl-1-[(2R)-2-methyloxiran-2-yl]pentan-1-one
Conditions | Yield |
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Multi-step reaction with 5 steps 1.1: sodium hydroxide / water / 20 h / 25 - 30 °C 2.1: 4-methyl-morpholine; chloroformic acid ethyl ester / dichloromethane / 0.33 h / -15 - -10 °C / Inert atmosphere 2.2: 2 h / -15 - -10 °C 3.1: magnesium; iodine / tetrahydrofuran / 2.5 h / 50 - 55 °C / Inert atmosphere 3.2: 8.25 h / 0 - 30 °C 4.1: potassium carbonate; benzonitrile; dihydrogen peroxide / methanol / 6 h / 25 - 30 °C 5.1: trifluoroacetic acid / dichloromethane / 3 h / 5 - 10 °C / Inert atmosphere View Scheme |
3-(tert-butoxycarbonylamino)-3-phenylpropanoic acid
(2S)-2-amino-4-methyl-1-[(2R)-2-methyloxiran-2-yl]pentan-1-one
tert-butyl 3-[(2S)-4-methyl-1-((2R)-2-methyloxiran-2-yl)-1-oxopentan-2-ylamino]-3-oxo-1-phenylpropylcarbamate
Conditions | Yield |
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Stage #1: 3-(tert-butoxycarbonylamino)-3-phenylpropanoic acid With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 0.5h; Stage #2: (2S)-2-amino-4-methyl-1-[(2R)-2-methyloxiran-2-yl]pentan-1-one With N-ethyl-N,N-diisopropylamine In dichloromethane for 3h; | 92% |
N-tert-butoxycarbonyl-L-phenylalanine
(2S)-2-amino-4-methyl-1-[(2R)-2-methyloxiran-2-yl]pentan-1-one
tert-butyl ((S)-1-(((S)-4-methyl-1-((R)-2-methyloxiran-2-yl)-1-oxopentan-2-yl)amino)-1-oxo-3-phenylpropan-2-yl)carbamate
Conditions | Yield |
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Stage #1: N-tert-butoxycarbonyl-L-phenylalanine With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 0.5h; Stage #2: (2S)-2-amino-4-methyl-1-[(2R)-2-methyloxiran-2-yl]pentan-1-one With N-ethyl-N,N-diisopropylamine In dichloromethane for 3h; | 87% |
Stage #1: (2S)-2-amino-4-methyl-1-[(2R)-2-methyloxiran-2-yl]pentan-1-one With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 0.5h; Stage #2: N-tert-butoxycarbonyl-L-phenylalanine With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 3h; | 87% |
N-tert-butoxycarbonyl-L-leucine
(2S)-2-amino-4-methyl-1-[(2R)-2-methyloxiran-2-yl]pentan-1-one
Conditions | Yield |
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Stage #1: (2S)-2-amino-4-methyl-1-[(2R)-2-methyloxiran-2-yl]pentan-1-one With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride In dichloromethane at 20℃; for 0.5h; Stage #2: N-tert-butoxycarbonyl-L-leucine With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 3h; | 76% |