Tetracyclic triterpenes. Part VI [1] . The synthesis of 4,4,14α-Trimethyl-19 ( 10 → 9β) abeo-steroids. Synthons for the preparation of cucurbitacins-Reference-Cited by-同舟云学术

Tetracyclic triterpenes. Part VI [1] . The synthesis of 4,4,14α-Trimethyl-19 ( 10 → 9β) abeo-steroids. Synthons for the preparation of cucurbitacins

Published:1981-08 Issue:2 Volume:38 Page:141-148
ISSN:0039-128X
Container-title:Steroids
language:en
Short-container-title:Steroids

Author:

Paryzek Zdzisław,Wydra Roman

Publisher

Elsevier BV

Subject

Organic Chemistry,Clinical Biochemistry,Pharmacology,Endocrinology,Molecular Biology,Biochemistry

Reference5 articles.

1. Tetracyclic triterpenes. Part 5. The synthesis of epimeric 9,11-epoxides in the tri-, hexa-, and octa-norlanostane series

2. Tetracyclic triterpenes. Part 2. A synthetic approach to cucurbitacins

3. Zur Kenntnis der Triterpene. 169. Mitteilung. �ber die Herstellung von Trisnor-acetoxy-lanostandions�uremethylester aus ?Isocholesterin?-acetat

4. For general experimental directions see ref. 3. The PMR, IR, UV, and CD spectra were measured in CDCl3 (TMS), CHCl3 , EtOH, and CH3CN, respectively.

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1. OXIDATION OF 3β-ACETOXY-5α-LANOST-8-ENE WITH CHROMYL CHLORIDE. THE PREPARATION OF 5α,8β-LANOST-9(11)-EN-7-ONE DERIVATIVES;Organic Preparations and Procedures International;1994-10

2. Tetracyclic triterpenes. XII. Reduction of 7-carbonyl group in 4,4,14α-trimethyl-5α-cholestane with unnatural 9β-configuration;Steroids;1988-09

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4. Tetracyclic triterpenes. VIII. The skeletal rearrangement of 3β-acetoxy-9α,11α-epoxy-5α-lanostan-7-one: 13- and 10-methyl group migration;Canadian Journal of Chemistry;1985-06-01

5. Transformations of steroids Communication 139. Synthesis and rearrangement of 8, 14,-epoxy-12-keto-cholanic acids;Bulletin of the Academy of Sciences of the USSR Division of Chemical Science;1984-11