((S)-4-Amino-3,3-difluoro-2-hydroxy-1-isobutyl-butyl)-carbamic acid benzyl ester

Base Information

Chemical Name:((S)-4-Amino-3,3-difluoro-2-hydroxy-1-isobutyl-butyl)-carbamic acid benzyl ester
CAS No.:119844-39-2
Molecular Formula:C₁₆H₂₄F₂N₂O₃
Molecular Weight:330.375
Hs Code.:

Synonyms:((S)-4-Amino-3,3-difluoro-2-hydroxy-1-isobutyl-butyl)-carbamic acid benzyl ester

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Chemical Property of ((S)-4-Amino-3,3-difluoro-2-hydroxy-1-isobutyl-butyl)-carbamic acid benzyl ester

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Technology Process of ((S)-4-Amino-3,3-difluoro-2-hydroxy-1-isobutyl-butyl)-carbamic acid benzyl ester

There total 4 articles about ((S)-4-Amino-3,3-difluoro-2-hydroxy-1-isobutyl-butyl)-carbamic acid benzyl ester which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

: 119372-63-3,119372-64-4,119844-37-0
4-benzyloxycarbonylamino-2,2-difluoro-3-hydroxy-5-methylheptanamide

: 119844-39-2
((S)-4-Amino-3,3-difluoro-2-hydroxy-1-isobutyl-butyl)-carbamic acid benzyl ester

Guidance literature:: With dimethylsulfide borane complex; In tetrahydrofuran;
DOI:10.1016/S0040-4039(00)82154-1

Reference yield:

: 119372-50-8,119372-51-9,119844-36-9
4-benzyloxycarbonylamino-2,2-difluoro-3-hydroxy-6-methylheptanoic acid ethyl ester

: 119844-39-2
((S)-4-Amino-3,3-difluoro-2-hydroxy-1-isobutyl-butyl)-carbamic acid benzyl ester

Guidance literature:: Multi-step reaction with 3 steps

1: 88 percent / ammonia gas / diethyl ether / -78 °C

2: 1.) BH₃(CH₃)2S; 2.) sat.hydrogen chloride; 3.) NaHCO₃, Na₂CO₃, / 1.) THF, reflux, 4 h; 2.) Et₂O, 0.45 min; 3.) water/THF, rt, 15 h

3: trifluoroacetic acid / 1.5 h / 0 °C

With hydrogenchloride; dimethylsulfide borane complex; ammonia; sodium hydrogencarbonate; sodium carbonate; trifluoroacetic acid; In diethyl ether;
DOI:10.1016/0040-4020(95)00896-G

Reference yield:

: 109075-73-2
benzyl (S)-[1-(N-methoxy-N-methylamino)-4-methyl-1-oxopentan-2-yl]carbamate

: 119844-39-2
((S)-4-Amino-3,3-difluoro-2-hydroxy-1-isobutyl-butyl)-carbamic acid benzyl ester

Guidance literature:: Multi-step reaction with 5 steps

1: 96 percent / lithium aluminium hydride / diethyl ether / 1 h / 0 °C

2: 50 percent / zinc / tetrahydrofuran / reflux; rt, 15 h

3: 88 percent / ammonia gas / diethyl ether / -78 °C

4: 1.) BH₃(CH₃)2S; 2.) sat.hydrogen chloride; 3.) NaHCO₃, Na₂CO₃, / 1.) THF, reflux, 4 h; 2.) Et₂O, 0.45 min; 3.) water/THF, rt, 15 h

5: trifluoroacetic acid / 1.5 h / 0 °C

With hydrogenchloride; lithium aluminium tetrahydride; dimethylsulfide borane complex; ammonia; sodium hydrogencarbonate; sodium carbonate; trifluoroacetic acid; zinc; In tetrahydrofuran; diethyl ether;
DOI:10.1016/0040-4020(95)00896-G