Studies on the Terpenoids and Related Alicyclic Compounds. I. Synthesis of 5α-and 5β-2-Oxosantan-6: 13-olide from Santonin
Autor: | Takashi Takakuwa, Makoto Suzuki, Norihide Umino, Reiji Sakaguchi, Koji Yamakawa, Shinpei Kidokoro |
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Rok vydání: | 1973 |
Předmět: | |
Zdroj: | Chemical and Pharmaceutical Bulletin. 21:296-307 |
ISSN: | 1347-5223 0009-2363 |
DOI: | 10.1248/cpb.21.296 |
Popis: | 5α-and 5β-2-oxosantanolide (XIII and XXIII) have been synthesized from known 2-acetoxy-α-and γ-tetrahydrosantonin (VIII and XIX), respectively, which has previously been obtained from (-)-santonin. Nuclear magnetic resonance, optical rotatory dispersion and circular dichroism spectra of XIII and XXIII are discussed. |
Databáze: | OpenAIRE |
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