Mitomycin A → 1,1a,2,8,8a,8b-Hexahydro-8-(hydroxymethyl)-8a-methoxy-5-methyl-6-(N-methylpropargylamino)-azirino[2',3':3,4]pyrrolo[1,2-a]indole-4,7-dione carbamate
Reaktionsgleichung
[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][NH:27][CH2:28][C:29]#[CH:30]>CO>[C:18](=[O:17])([OH:19])[NH2:20].[OH:17][CH2:16][CH:15]1[C:6]2[C:4](=[O:5])[C:3]([N:27]([CH2:28][C:29]#[CH:30])[CH3:26])=[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]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
To a solution of 50 mg (0.14 mmol) of mitomycin A in 10 ml of anhydrous methanol was stirred with 150 mg (2 mmol) of N-methylpropargylamine at room temperature. The reaction appeared to be complete in 3 hours, as revealed by TLC. 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 under reduced pressure. Recrystallization from a mixture of methylene chloride and hexane gave 20 mg (37% yield) of the desired product as purple-colored crystals having a melting point of 86°-87° C. (decomposing) and providing the following analysis: