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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
ノート
印刷プレビュー

反応式

HRID 1770 の反応式
[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
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 85760alpha-Methylbenzyl isocyanateHCID 88402553cis-(+/-)-1,2,3,3a,8,8a-Hexahydro-1,3a,8-trimethylpyrrolo [2,3-b]indol-4-ol

生成物 1

HCID 53984692(+/-)-(3aR*,8aS*)-1,2,3,3a,8,8a-Hexahydro-1,3a,8-trimethylpyrrolo-[2,3-b]indol-4-yl (R)-(alpha-methylbenzyl)carbamate

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran
溶媒

実験手順

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.

後処理

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

出典と根拠

ORDレコード
ord-cb9d1bc99b9b4ab18c65744a87225d92
出典データセット
uspto-grants-1998_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05726323

反応ノート

読み込み中…

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