Synthesis of [26,27-2H6]brassinosteroids from 23,24-bisnorcholenic acid methyl ester
β Scribed by Andrey P. Antonchick; Bernd Schneider; Vladimir N. Zhabinskii; Vladimir A. Khripach
- Book ID
- 116891713
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 225 KB
- Volume
- 69
- Category
- Article
- ISSN
- 0039-128X
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## Abstract magnified image Novel bisheterocycles, 1,2,3βselenadiazoles, thiadiazoles and 2__H__βdiazaphospholes in combination with oxadiazoles, thiadiazoles and triazoles were prepared from phenacylsulfonylacetic acid methyl ester.
The (+)-Prelog-Djetassi lactone methyl ester 1 was obtained from tmns-pulegenic acid 2 in seven steps jn 22 % overall YjeJd; three more steps from an unwanted dkstereoisomergave additionnal5 %. Resume : L 'ester methylique de la Iactone de Prelog-Djemssi I a et6 obtenu en sept &apes i partir de I 'a