Studies on Steroidal Plant-Growth Regulators: A New Synthesis of Brassinosteroids

DOI: 10.1055/s-1989-27273

Source and publish data:

Synthesis p. 426 - 427 (1989)

Update date:2022-09-26

Topics:

Authors:

Zhou, Wei-Shan

Zhou, Yi-Pine

Jiang, Biao

Read Full Text PDF DownLoad Join now for total 90,000,000 free articles

Article abstract of DOI:10.1055/s-1989-27273

Two brassinosteroids (stereoisomers of brassinolide), (22R,23R,24R)-2α,3α,22,23-tetrahydroxy-B-homo-7-oxa-5α-ergostan-6-one (2) and (22S,23S,24R)-2α,3α,22,23-tetrahydroxy-B-homo-7-oxa-5α-ergostan-6-one (3), were synthesized from ergosterol in eight steps in ca. 30percent overall yield.The key step is the highly regioselective formation of the 7-oxalactone ring by oxidation of an enol silyl ether with 3-chloroperoxybenzoic acid.

Full text of DOI:10.1055/s-1989-27273

Products guided by the article

Product name:(22E,24R)-7α-Hydroxy-5α-ergost-2,22-dien-6-one

Cas No:124696-44-2

R&D Labs maybe for 124696-44-2

WENZHOU M&C FOREIGN TRADE CO.,LTD.

Contact:+86-577-88862917

Address:No.8 Liming West Road,Wenzhou,zhejiang,China
MS( MAOSHENG )Chemical CO.,LTD

Contact:+86-519-82726678.82726378

Address:TAOXI INDUSTRY ZONE JINTAN
Hunan Dinuo Pharmaceutical Co.,Ltd.

Contact:86-731-88280100*8561

Address:Bio-pharmaceutical industrial park, Liuyang, Hunan, China
Shanghai Norky Pharmaceutical Co., LTD.

website:http://www.norkypharm.com

Contact:86-21-61075300

Address:1165 Jiangning Road, Office 1502, Shanghai, China
chengdu firsterchem Pharmaceutical Co., Ltd.

Contact:028-66825849

Address:chengdu

Relevant to this article

Total synthesis of patulolide C and its homo, nor, and iso analogs

Doi:10.1021/jo00077a047
(1993)
Investigations on 1,3-thiazines, XL; Iminium carbonic acid derivative salts, IV: Cyclic ketene-S,N-acetales from iminium thiocarbonic acid ester chlorid-chlorides and doubly activated cyclic methylene compounds

Doi:10.1002/ardp.19903230912
(1990)
Geminal Dimethyl Stereochemistry in the Enzymatic Cyclization of Geranyl Pyrophosphate to (+)- and (-)-Pinene

Doi:10.1021/ja00248a048
(1987)
Synthesis of (+)-pilocarpine analogs with a 2-oxazolidone structure

Doi:10.1016/S0040-4039(01)93734-7
(1989)
Synthesis and antimicrobial activity of a series of optically active quaternary ammonium salts derived from phenylalanine

Doi:10.2478/s11532-009-0126-8
(2010)
Reversible O-O bond cleavage and formation between Mn(IV)-peroxo and Mn(V)-oxo corroles

Doi:10.1021/ja1066465
(2010)

Article Doi