Chemical and Pharmaceutical Bulletin p. 1925 - 1927 (1992)
Update date:2022-07-30
Topics:
Ikota
(3R,4R,5R)-1-(tert-Butoxycarbonyl)-3,4-isopropylidenedioxy-5-methoxyme thyl-2-pyrrolidinone (6), a useful chiral intermediate for the preparation of calyculins, was synthesized starting from (S)-pyroglutaminol via the O-methylation of 1c with diazomethane in the presence of fluoboric acid and cis-dihydroxylation of the α,β-unsaturated lactam (4) as the key reactions.
View MoreTaizhou Sunny Chemical Co.,Ltd
Contact:+86-523-86920899 +86-13951172783
Address:No.11 Xingyuang road, Gaoyong Chemical Industry Park, Gaogang Jiangsu China
JIANGXI XINXIN CHEMICAL CO., LTD.
Contact:86-15957176628
Address:INDUSTRY ROAD 1, INDUSTRIAL PARK, HEKOU TOWN,YANSHAN COUNTY, JIANGXI PROVINCE, CHINA
Yingkou Sanzheng New Technology Chemical Industry Co., Ltd.
Contact:+86-417-2927806
Address:yingkou
chengdu firsterchem Pharmaceutical Co., Ltd.
Contact:028-66825849
Address:chengdu
Changzhou Sunlight Pharmaceutical Co., Ltd.
Contact:+86-519-83131668;83139028;83138042;83137041
Address:JiuliStreet, Benniu Town Changzhou City, Jiangsu Province
Doi:10.1002/ejoc.201402782
(2014)Doi:10.1002/mrc.1260301116
(1992)Doi:10.3390/molecules18077436
(2013)Doi:10.1039/c3cc44435j
(2013)Doi:10.1016/j.tet.2013.07.065
(2013)Doi:10.1039/p19960001913
(1996)