Triethylamine → (2S,3R)-3-Allyl-4-oxo-1-(1-phenyl-propylcarbamoyl)-azetidine-2-carboxylic acid 4-methoxy-benzyl ester

HRID 1783427노트

반응식

HRID 1783427 반응식
[CH3:1][O:2][C:3]1[CH:20]=[CH:19][C:6]([CH2:7][O:8][C:9]([C@@H:11]2[C@@H:14]([CH2:15][CH:16]=[CH2:17])[C:13](=[O:18])[NH:12]2)=[O:10])=[CH:5][CH:4]=1.C(N(CC)CC)C.[CH2:28]([CH:30]([N:37]=[C:38]=[O:39])[C:31]1[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=1)[CH3:29]>C(Cl)Cl>[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]([CH2:7][O:8][C:9]([C@@H:11]2[C@@H:14]([CH2:15][CH:16]=[CH2:17])[C:13](=[O:18])[N:12]2[C:38](=[O:39])[NH:37][CH:30]([C:31]2[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=2)[CH2:28][CH3:29])=[O:10])=[CH:19][CH:20]=1

참가 물질

5

반응물 3

HCID 8471TriethylamineHCID 15563476(1-Isocyanatopropyl)benzeneHCID 57589773(2S,3R)-3-Allyl-4-oxo-azetidine-2-carboxylic acid 4-methoxy-benzyl ester

생성물 1

HCID 68603869(2S,3R)-3-Allyl-4-oxo-1-(1-phenyl-propylcarbamoyl)-azetidine-2-carboxylic acid 4-methoxy-benzyl ester수율 59%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

A mixture of compound 59 (41 mg, 0.15 mmol), triethylamine (83 uL, 0.60 mmol), α-ethyl-benzyl isocyanate (29 mg, 0.18 mmol) in methylene chloride (1.2 mL) was stirred overnight. TLC analysis indicated the completion the reaction. Removal of solvents gave the crude material, which was purified by preparative TLC plate (15% EtOAc in hexanes), yielding 38.2 mg of compound 60 (59%): LC-MS purity: 98.1%; 1HNMR (300 MHz, CDCl3): 0.95 (t, 3H), 1.92 (m, 2H), 2.69 (m, 2H), 3.30 (m, 1H), 3.83 (s, 3H), 4.22 (d, 1H), 4.85 (q, 1H), 5.18 (m, 4H), 5.80 (m, 1H), 6.85 (br, d, 1H), 7.45 (m, 9H). Anal. C25H28N2O5, Mol. Wt.: 436.5. Found: ESI-MS: 437.1 (M+H)+.

후처리

  1. customthe reaction
  2. customRemoval of solvents
  3. customgave the crude material, which
  4. customwas purified by preparative TLC plate (15% EtOAc in hexanes)

출처 및 근거

ORD 기록
ord-5f9ae00d60e145d8aec04edc69a01edb
출처 데이터셋
uspto-grants-2009_03
특허 번호
US07501404B2

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