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
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