Methanol → 1,1a,2,8,8a,8b-Hexahydro-8-(hydroxymethyl)-8a-methoxy-5-methyl-6-furfurylamino-azirino[2',3':3,4]pyrrolo-[1,2-a]indole-4,7-dione carbamate
Reaction equation
[CH3:1][C:2]1[C:8](=[O:9])[C:7]2[N:10]3[C@@:14]([O:21][CH3:22])([C@H:15]([CH2:16][O:17][C:18]([NH2:20])=[O:19])[C:6]=2[C:4](=[O:5])[C:3]=1OC)[C@H:13]1[NH:23][C@H:12]1[CH2:11]3.[CH3:26][OH:27]>C(N)C1OC=CC=1>[C:18](=[O:17])([OH:19])[NH2:20].[OH:17][CH2:16][CH:15]1[C:6]2[C:4](=[O:5])[C:3]([NH:10][CH2:7][C:6]3[O:27][CH:26]=[CH:3][CH:4]=3)=[C:2]([CH3:1])[C:8](=[O:9])[C:7]=2[N:10]2[CH2:11][CH:12]3[NH:23][CH:13]3[C:14]12[O:21][CH3:22]Participants
4
Procedure
To a solution of 60 mg (0.17 mmol) of mitomycin A in 8 ml of anhydrous methanol, 0.5 ml of furfurylamine was added with stirring. The progress of the reaction was periodically checked by TLC and the reaction appeared to be complete in 3 hours. The solvent was removed by evaporation under reduced pressure and the residue was chromatographed using silica-gel as adsorbent. The fraction obtained by eluting the column with ethyl acetate was evaporated. Recrystallization from a mixture of chloroform and hexane gave 30 mg (42.7% yield) of the desired product as purple-colored crystals having a melting point of 62°-63° (decomposing) and providing the following analysis: