文章基本信息

标题：On the Structure of Strepsilin. II.
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作者：Shoji Shibata
期刊名称：Chemical and Pharmaceutical Bulletin
印刷版ISSN：0009-2363
电子版ISSN：1347-5223
出版年度：1957
卷号：5
期号：5
页码：488-491
DOI：10.1248/cpb1953.5.488
出版社：The Pharmaceutical Society of Japan
摘要：The structure of strepsilin was examined by infrared spectra. The C=O stretching frequencies of strepsilin at 1745 cm^-1 (in dioxane) and its shift to 1770 cm^-1 by the methylation of hydroxyls indicated that strepsilin possesses a hydrogen-bonded carbonyl of phthalide ring, which accounts for the structural formula (Ia) of strepsilin. The structures of phenolic acid, m.p. 308°, and the yellow crystalline compound, m.p. 247°, which were derived from strepsilin, were discussed from their infrared spectra.