Cyclopropanone equivalents. Formation of 1-pyrrolizidione by a dicyclopropyl imine rearrangement.
作者:Harry H. Wasserman、Robert P. Dion
DOI:10.1016/s0040-4039(00)87120-8
日期:1982.1
A dicyclopropyl ketimine may be formed by the addition of cyclopropyllithium to 1-cyano-1-piperidinocyclopropane. Rearrangement of the ketimine takes place under acid catalysis to form 1-pyrrolizidinone.
Lactam Compound, Preparation Method and Use thereof
申请人:OCEAN UNIVERSITY OF CHINA
公开号:US20200030312A1
公开(公告)日:2020-01-30
Provided is a lactam compound, a tautomer, a stereoisomer, a racemate, a nonequal mixture of enantiomers, a geometric isomer, a solvate, a pharmaceutically acceptable salt thereof, or a solvate of the salt of the compound, and a pharmaceutical composition containing the compound. Also provided are the use of such compounds and their pharmaceutical compositions as drugs, especially as antiviral drugs.
Synthesis of (±)-isoretronecanol, (±)-curassanecine, (±)-heliotridane, (±)-tashiromine and (±)-5-epitashiromine via α-(N-carbamoyl)alkylcuprate chemistry
作者:R.Karl Dieter、Rhett Watson
DOI:10.1016/s0040-4039(02)01835-x
日期:2002.10
Vinylation of N-Boc-2-pyrrolidinylcuprate reagents with functionalized vinyl iodides followed by N-Boc deprotection and cyclization affords 1-methylidine pyrrolizidine and indolizidine carbon skeletons. Functional group manipulation of the exo-cyclic olefin provides direct synthetic entries to the pyrrolizidine alkaloids (±)-isoretronecanol, (±)-curassanecine, (±)-heliotridane or the indolizidine alkaloids
Hexahydro-3H-Pyrrolizin-3-Ones Useful as Tachykinin Receptor Antagonists
申请人:Bao Jianming
公开号:US20090042854A1
公开(公告)日:2009-02-12
The present invention is directed to certain hexahydrpyrrolidinone compounds which are useful as neurokinin-1 (NK-1) receptor antagonists, and inhibitors of tachykinin and in particular substance P. The invention is also concerned with pharmaceutical formulations comprising these compounds as active ingredients and the use of the compounds and their formulations in the treatment of certain disorders, including emesis, urinary incontinence, depression, and anxiety.
5,6,Fused Pyrrolidine Compounds Useful as Tachykinin Receptor Antagonists
申请人:Bao Jianming
公开号:US20090286777A1
公开(公告)日:2009-11-19
The present invention is directed to certain 5,6-fused pyrrolidine compounds which are useful as neurokinin-1 (NK-1) receptor antagonists, and inhibitors of tachykinin and in particular substance P. The invention is also concerned with pharmaceutical formulations comprising these compounds as active ingredients and the use of the compounds and their formulations in the treatment of certain disorders, including emesis, urinary incontinence, depression, and anxiety.