Cyclization Reactions of Oxyallyl Cation. A Method for Cyclopentane Ring Formation
作者:Bojan Vulovic、Milena Trmcic、Radomir Matovic、Radomir N. Saicic
DOI:10.1021/acs.orglett.9b03791
日期:2019.12.6
positioned alkene bond undergo 5-exo-cyclization with the formation of vinylcyclopentane derivatives. Alkyne analogues provide allenes. The reaction proceeds with a moderate to excellent level of stereoselectivity and allows for asymmetric induction in the reaction with chiral substrate.
EXTRACTS OF CHENOPODIUM AMBROSIOIDES L., THE COMPOSITIONS COMPRISING SAID EXTRACTS, THE PREPARING PROCESS AND APPLICATION THEREOF
申请人:Wei Feng
公开号:US20090130203A1
公开(公告)日:2009-05-21
The present invention relates to plant extracts, specifically, the extracts of Chinese medicine Chenopodium ambrosioides L. and the composition comprising thereof. The extracts of Chinese medicine Chenopodium ambrosioides L. are prepared by conventional methods for the extraction of volatile oil, and can be used to treat
Helicobacter Pylori
-induced diseases of digestive system, such as gastritis, gastric ulcer, etc., with easy availability of raw materials, simple preparations, prominent effects, and less side-effect.
US8361515B2
申请人:——
公开号:US8361515B2
公开(公告)日:2013-01-29
US8586108B2
申请人:——
公开号:US8586108B2
公开(公告)日:2013-11-19
Luzina; Tatarova; Korchagina, Russian Journal of Nondestructive Testing, 1997, vol. 33, # 2, p. 183 - 193