期刊
SYNTHESIS-STUTTGART
卷 -, 期 21, 页码 3642-3648出版社
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0029-1217004
关键词
isatin; tryptanthrin; ophiuroidine; Prey demethylation; microwave irradiation
A new method for the preparation of methoxyisatins from the corresponding methoxyanilines is described. The resulting methoxyisatins were used in the syntheses of several methoxytryptanthrin compounds. The natural product ophiuroidine (4,8,.9-trihydroxytryptanthrin) was obtained from the appropriate trimethoxy precursor using a microwave-mediated Prey demethylation.
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