[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]=1N)[C@H:13]1[NH:23][C@H:12]1[CH2:11]3.Cl.CCCCCC.[OH-:32].[Na+]>CCOCC>[CH3:1][C:2]1[C:3](=[O:32])[C:4](=[O:5])[C:6]2[C@@H:15]([CH2:16][O:17][C:18]([NH2:20])=[O:19])[C@@:14]3([O:21][CH3:22])[C@H:13]4[NH:23][C@H:12]4[CH2:11][N:10]3[C:7]=2[C:8]=1[OH:9]Mitomycin C (2.2 g, 6.6 mmoles) was dissolved in 140 ml 0.1N methanolic NaOH (50%) and the reaction mixture was stirred at room temperature for 30 hours. The solution was then adjusted to ca. pH 4.0 with 1N HCl and extracted with ethyl acetate (4×500 ml). The combined ethyl acetate extracts were dried (Na2SO4) and evaporated under reduced pressure at about 30° to 35° C. to obtain a solid residue, which upon dissolving in ether and treating with excess hexane afforded a purple precipitate. The precipitate was collected and air dried to afford the title compound as a fine purple powder (1.4 g, 63%).
불러오는 중…
