Polycyclic Oxadiazoles or I Soxazoles and Their Use as Sip Receptor Ligands
申请人:Albert Rainer
公开号:US20080306124A1
公开(公告)日:2008-12-11
Disclosed are polycyclic compounds of formula I
wherein R
1
, R
2
, X, Y and cycle A are as defined in claim
1
, which have interesting pharmaceutical properties.
Photochemical Conversion of Isoxazoles to 5-Hydroxyimidazolines
作者:Taiki Morita、Shinichiro Fuse、Hiroyuki Nakamura
DOI:10.1021/acs.orglett.0c00910
日期:2020.5.1
Photochemicalconversion of isoxazole I to 5-hydroxyimidazoline VII proceeded via the trapping of the photogenerated acylazirine III with amines under UV light irradiation. This is the first report of the efficient synthesis of 5-hydroxyimidazolines that are not readily accessible by other means. 5-Hydroxyimidazolines were also converted into multisubstituted imidazoles in one step by treatment with