反应详情

By high-resolution FAB mass spectrometry using a nitrobenzylalcohol matrix, the following molecular weight was found: 445.2721 amu, corresponding to (M+H)+ for cyclipostin P of C23H42O6P. From this, an empirical formula for cyclipostin P 2 of C23H41O6P resulted, molecular weight: 444. By electron spray mass spectrometry, in the positive ionization mode (ESI, positive) a peak at 445 amu, corresponding to (M+H)+ was found; moreover the characteristic peak at 221 amu, corresponding to C7H10O6P, was found. In the ESI negative mode, 443 amu (M−H)−, 321 amu (C16H34O4P) and 219 amu (C7H8O6P) were found.