Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
Diterpenoids. XV. Conformational Studies. III. Temperature Dependent Proton Magnetic Resonance Spectra of Ring C Aromatic Tricyclic Diterpene
KENICHI HIRAOSATORU MITSUBAYASHIJUN UZAWAAKIRA TAHARANORIKO MITOMOSHOICHI HAYASHI
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1970 Volume 18 Issue 11 Pages 2169-2175

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Abstract
Temperature dependent proton magnetic resonance studies of four basic ring C aromatic tricyclic diterpenes (I, II, III and IV) are discussed and shown to be able to characterize each stereoisomers. This method is also applied to the analysis of 7-oxo and 20-nor derivatives.
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© The Pharmaceutical Society of Japan
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