HCID 178418361、化合物 → HCID 178479558、化合物

反応式

[H][H].[Cl:3][C:4]1[C:29](=[O:30])[NH:28][C:27](=[O:31])[NH:26][C:5]=1[C:6]([NH:8][C@H:9]([C:16]([N:18]1[CH2:25][CH2:24][CH2:23][C@H:19]1[C:20]([NH2:22])=[O:21])=[O:17])[CH2:10][C:11]1[N:15]=[CH:14][NH:13][CH:12]=1)=[O:7]>[Pd].C(O)(=O)C>[ClH:3].[C:6]([NH:8][C@H:9]([C:16]([N:18]1[CH2:25][CH2:24][CH2:23][C@H:19]1[C:20]([NH2:22])=[O:21])=[O:17])[CH2:10][C:11]1[N:15]=[CH:14][NH:13][CH:12]=1)(=[O:7])[C:5]1[NH:26][C:27](=[O:31])[NH:28][C:29](=[O:30])[CH:4]=1

参加物

実験手順

100 mg of 5% palladium on charcoal in 15 ml of glacial acetic acid are pretreated with hydrogen. Then a solution of 850 mg of 5-chloro-orotyl-L-histidyl-L-prolinamide in 30 ml of glacial acetic acid are added and the mixture is shaken in a hydrogen atmosphere at normal pressure and at room temperature. After consumption of 2 m moles of hydrogen the catalyst is filtered off, the filtrate evaporated to a small volume and treated with absolute ether. The precipitate is separated, washed with ether and dried to give orotyl-L-histidyl-L-prolinamide-hydrochloride in almost quantitative yield.