Alkaloids from the leaves ofStrychnos icaja Baill. |
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| Authors: | NG Bisset BC Das J Parello |
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| Institution: | Institut de Chimie des Substances Naturelles, 91190-Gif-sui-Yvette, France |
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| Abstract: | From the leaves ofStrychnos icaja Baill. a further seven alkaloids have been isolated and their structures determined: 16-hydroxystrychnine (1e), 21,22-α-epoxy-4-hydroxy-3-methoxy-N-methyl-sec.-pseudostrychnine (5c), 21,22-α-epoxy-4-hydroxy-N-methyl-sec.-pseudostrychnine5a), 21,22-α-epoxy-2-methoxy-N-methyl-sec.-pseudostrychnine (5b), 21,22-α-epoxy-14-hydroxy-N-methyl-sec.-pseudostrychnine (6a), 21,22-α-epoxy-4,14-dihydroxy-N-methyl-sec.-pseudostrychnine (6b), and 14-hydroxy-N-methyl-sec.-pseudostrychnine (7). Jaminet's alkaloid B' is shown to be impure 21,22-α-epoxy-14-hydroxy-2,3-dimethoxy-N-methyl-sec.-pseudostrychnine (6c). |
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