Acetonitrile → cis-N-Carbobenzyloxy-4-[[(methylamino)carbonyl]oxy]-L-proline, methyl ester

HRID 1414072

반응식

HRID 1414072 반응식
[C:1]([N:11]1[CH2:19][C@@H:18]([OH:20])[CH2:17][C@H:12]1[C:13]([O:15][CH3:16])=[O:14])([O:3][CH2:4][C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1)=[O:2].C(#N)C.[CH3:24][N:25]=[C:26]=[O:27]>C(N(CC)CC)C>[C:1]([N:11]1[CH2:19][C@@H:18]([O:20][C:26]([NH:25][CH3:24])=[O:27])[CH2:17][C@H:12]1[C:13]([O:15][CH3:16])=[O:14])([O:3][CH2:4][C:5]1[CH:6]=[CH:7][CH:8]=[CH:9][CH:10]=1)=[O:2]

참가 물질

5

반응물 3

HCID 6342AcetonitrileHCID 12228Methyl IsocyanateHCID 688413(2S,4S)-1-Benzyl 2-methyl 4-hydroxypyrrolidine-1,2-dicarboxylate

생성물 1

HCID 131711848cis-N-Carbobenzyloxy-4-[[(methylamino)carbonyl]oxy]-L-proline, methyl ester수율 86%

시약·촉매·용매 1

HCID 8471Triethylamine용매

실험 절차

To a stirred solution of 5.4 g. (0.019 mole) of N-carbobenzyloxy-cis-4-hydroxy-L-proline, methyl ester, in 120 ml. of acetonitrile is added 5.4 ml. of triethylamine, followed by 5.4 ml. of methyl isocyanate. After keeping overnight at room temperature and refluxing for two hours, the reaction mixture is worked up as in Example 1c to give 5.6 g (86%) of a pale yellow viscous oil.

후처리

  1. temperaturerefluxing for two hours

출처 및 근거

ORD 기록
ord-8429242f70824658bcd09f99cb2a2e7f
출처 데이터셋
uspto-grants-1981_02
특허 번호
US04252943

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