1,8-Diazabicyclo(5.4.0)undec-7-ene → (+/-)-(3aR*,8aS*)-1,2,3,3a,8,8a-Hexahydro-1,3a,8-trimethylpyrrolo-[2,3-b]indol-4-yl (R)-(alpha-methylbenzyl)carbamate

HRID 1770

반응식

HRID 1770 반응식
[CH3:1][N:2]1[C@@H:6]2[N:7]([CH3:15])[C:8]3[CH:9]=[CH:10][CH:11]=[C:12]([OH:14])[C:13]=3[C@:5]2([CH3:16])[CH2:4][CH2:3]1.C1CCN2C(=NCCC2)CC1.[CH3:28][CH:29]([N:36]=[C:37]=[O:38])[C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1>C1COCC1>[CH3:28][C@@H:29]([NH:36][C:37](=[O:38])[O:14][C:12]1[CH:11]=[CH:10][CH:9]=[C:8]2[C:13]=1[C@@:5]1([CH3:16])[CH2:4][CH2:3][N:2]([CH3:1])[C@H:6]1[N:7]2[CH3:15])[C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1

참가 물질

5

실험 절차

cis-(±)-1,2,3,3a,8,8a-Hexahydro-1,3a,8-trimethylpyrrolo [2,3-b]indol-4-ol (2g) was dissolved in degassed THF (200 ml). DBU (0.8 ml) was added to the mixture followed by R-(+)-α-methylbenzyl isocyanate (2 g). The reaction was stirred at room temperature overnight under nitrogen. The solvent was evaporated under reduced pressure and the residue was purified using Prep 500 chromatography (4% MeOH/DCM) to yield 1.2 g of a solid. This material was combined with 600 mg of identically prepared material, which was found to be pure by thin layer analysis. The combined product was triturated with isopropyl ether and filtered to yield 1.8 g of (±)-(3aR*, 8aS*)-1,2,3,3a,8,8a-hexahydro-1,3a,8-trimethylpyrrolo [2,3-b]indol-4-yl (R)-(α-methylbenzyl)carbamate, m.p. 151°-155° C.

후처리

  1. customThe solvent was evaporated under reduced pressure
  2. customthe residue was purified

출처 및 근거

ORD 기록
ord-cb9d1bc99b9b4ab18c65744a87225d92
출처 데이터셋
uspto-grants-1998_03
특허 번호
US05726323

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