Abstract
1. The molecular weight of the compound studied is determined by the most intense ion peak with maximum m/e value which, as a rule, is the ion peak, with m/e (M - 60)+.. 2. The ratios of the peaks for the molecular ion and (M-AcOH) ion of esters of 24-nor- and 21,24-dinorchola-5,16,20 (22)-trienic acids (IV)–(VI) depends on the stereochemistry at the Δ20(22) bond. 3. The presence of ion peaks with m/e 213 and 226 is characteristic for compounds containing hydroxyl and/or acetoxy groups at C-16 and C-17.
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Schedule a callMore From: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science
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