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 MoreHubei Onward Bio-Development Co., Ltd.
Contact:+86-718-8417012
Address:No.517,Shizhou Avenue,Enshi City,Hubei Province,China,445002
website:http://www.herbpurify.com
Contact:0086-028-85249238
Address:Room709-C1,Incubator Building, Tianfu Life Science Park No.88,Keyuan Road,Gaoxin district,Chengdu City,Sichuan Prov,China
Hangzhou Zyter Biological & Chemical Technology Co., Ltd.
website:http://www.zyterpharm.com
Contact:+86-18858184290
Address:West Wenyi Road, Cangqian, Yuhang
Wuhan Sunrise Pharmaceutical Technology Co., Ltd
Contact:+86-27-83314682
Address:Room 340, New material Industrial base No.17, Gu Tian Five Lu , Qiaokou District, Wuhan , China
Shanghai Kangxin Chemical Co., Ltd
Contact:+86 21 60717227
Address:118,Ganbai Village,Waigang Town,Jiading District,Shanghai
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)
