(3aR*,10aS*)-9-[4-(benzyloxycarbonylamino)benzyl]-4-(phthalimidoacetyl)-2,3,3a,4,9,10a-hexahydrobenzo[b]cyclopenta[e][1,4]diazepin-10(1H)-one → (3aR*,10aS*)-9-(4-Aminobenzyl)-4-(phthalimidoacetyl)-2,3,3a,4,9,10a-hexahydrobenzo[b]cyclopenta[e]-[1,4]diazepin-10(1H)-one hydrobromide
反応式
C(OC([NH:11][C:12]1[CH:47]=[CH:46][C:15]([CH2:16][N:17]2[C:23](=[O:24])[C@H:22]3[CH2:25][CH2:26][CH2:27][C@H:21]3[N:20]([C:28](=[O:41])[CH2:29][N:30]3[C:34](=[O:35])[C:33]4=[CH:36][CH:37]=[CH:38][CH:39]=[C:32]4[C:31]3=[O:40])[C:19]3[CH:42]=[CH:43][CH:44]=[CH:45][C:18]2=3)=[CH:14][CH:13]=1)=O)C1C=CC=CC=1.[BrH:48].C(O)(=O)C>C(Cl)(Cl)Cl>[BrH:48].[NH2:11][C:12]1[CH:13]=[CH:14][C:15]([CH2:16][N:17]2[C:23](=[O:24])[C@H:22]3[CH2:25][CH2:26][CH2:27][C@H:21]3[N:20]([C:28](=[O:41])[CH2:29][N:30]3[C:31](=[O:40])[C:32]4=[CH:39][CH:38]=[CH:37][CH:36]=[C:33]4[C:34]3=[O:35])[C:19]3[CH:42]=[CH:43][CH:44]=[CH:45][C:18]2=3)=[CH:46][CH:47]=1参加物
反応物 2
生成物 1
試薬・触媒・溶媒 1
実験手順
To a solution of (3aR*,10aS*)-9-[4-(benzyloxycarbonylamino)benzyl]-4-(phthalimidoacetyl)-2,3,3a,4,9,10a-hexahydrobenzo[b]cyclopenta[e][1,4]diazepin-10(1H)-one (5.15 g, 8.2 mmol) in chloroform (80 mL) was added 25% hydrogen bromide/acetic acid (15 mL) and the mixture was stirred at room temperature for 45 minutes. This reaction mixture was concentrated under reduced pressure and the residue was crystallized from ethanol-diethyl ether to provide (3aR*,10aS*)-9-(4-aminobenzyl)-4-(phthalimidoacetyl)-2,3,3a,4,9,10a-hexahydrobenzo[b]cyclopenta[e][l,4]diazepin-10(1H)-one hydrobromide. This product was suspended in chloroform and treated with 0.5N-aqueous NaOH solution (40 mL). The aqueous layer was separated and the organic layer was washed with water, dried over MgSO4, filtered, and concentrated under reduced pressure. The residue was crystallized from chloroform-diethyl ether to provide 3.71 g (yield 91%) of the title compound. m.p. 286°-289° C.
後処理
- concentrationThis reaction mixture was concentrated under reduced pressure
- customthe residue was crystallized from ethanol-diethyl ether
出典と根拠
- ORDレコード
- ord-1b897231e5e04c8387e7e634fce8a4b4
- 出典データセット
- uspto-grants-1999_02
- 特許番号
- US05866567
反応ノート
読み込み中…