Synthesis of [26-2H3]-6-deoxo-24-epicastasterone

被引:4
作者
Khripach, V. A. [1 ]
Zhabinskii, V. N. [1 ]
Gulyakevich, O. V. [1 ]
Ermolovich, Yu. V. [1 ]
机构
[1] Natl Acad Sci Belarus, Inst Bioorgan Chem, Minsk 220141, BELARUS
关键词
brassinosteroids; epibrassinolide; 6-deoxo-24-epicastasterone; deoxygenation; labeled compounds; BRASSINOSTEROIDS; BRASSINOLIDE; ANALOGS; CRINOSTEROL;
D O I
10.1007/s10600-012-0322-1
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
Deuterium-labeled 6-deoxo-24-epicastasterone was synthesized as a tool for studying the biosynthesis of 24-epibrassinolide in plants. The carbon skeleton of the side chain with the required C-24 methyl stereochemistry was constructed through a Claisen rearrangement. Deuterium atoms were introduced by reduction with LiAlD4 of the obtained gamma,delta-unsaturated ester. Both diols were introduced as a result of Sharpless asymmetric dihydroxylation of the intermediate a dagger(2,22)-diene.
引用
收藏
页码:601 / 605
页数:5
相关论文
共 21 条
[1]   STEREOSELECTIVE SYNTHESIS OF CRINOSTEROL [(22E,24S)-ERGOSTA-5,22-DIEN-3-BETA-OL] [J].
ANASTASIA, M ;
ALLEVI, P ;
CIUFFREDA, P ;
FIECCHI, A .
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, 1983, (10) :2365-2367
[2]   Synthesis of [26,27-2H6] brassinosteroids from 23,24-bisnorcholenic acid methyl ester [J].
Antonchick, AP ;
Schneider, B ;
Zhabinskii, VN ;
Khripach, VA .
STEROIDS, 2004, 69 (10) :617-628
[3]  
Choi YH, 1997, PHYTOCHEMISTRY, V44, P609, DOI 10.1016/S0031-9422(96)00572-9
[4]   Biosynthesis and metabolism of brassinosteroids [J].
Fujioka, S ;
Yokota, T .
ANNUAL REVIEW OF PLANT BIOLOGY, 2003, 54 :137-164
[5]   Brassinosteroids in Arabidopsis thaliana [J].
Fujioka, S ;
Noguchi, T ;
Yokota, T ;
Takatsuto, S ;
Yoshida, S .
PHYTOCHEMISTRY, 1998, 48 (04) :595-599
[6]  
Khripach VA, 2003, BRASSINOSTEROIDS: BIOACTIVITY AND CROP PRODUCTIVITY, P189
[7]   Synthesis of [26-2H3]brassinosteroids [J].
Khripach, VA ;
Zhabinskii, VN ;
Konstantinova, OV ;
Antonchick, AP ;
Schneider, B .
STEROIDS, 2002, 67 (07) :587-595
[8]   [3,3]-Claisen rearrangements in 24α-methyl steroid synthesis -: Application to campesterol, crinosterol, and Δ25-crinosterol side chain construction [J].
Khripach, VA ;
Zhabinskii, VN ;
Konstantinova, OV ;
Khripach, NB ;
Antonchick, AP ;
Schneider, B .
STEROIDS, 2002, 67 (07) :597-603
[9]  
Khripach VA., 1999, Brassinosteroids: a new class of plant hormones
[10]   Labeled brassinosteroids for biochemical studies [J].
Khripach, Vladimir ;
Zhabinskii, Vladimir .
CHEMICAL RECORD, 2007, 7 (05) :265-274