Stereoselective synthesis of functionalized (1E,5E)-1,5-dien-3-ynes containing ester or sulfonyl groups by palladium-catalyzed addition and cross-coupling reactions
作者:Wenyan Hao、Shiyun Xie、Yichao Wu、Mingzhong Cai
DOI:10.1039/c4nj00087k
日期:——
Stereoselective synthesis of (1E,5E)-1-sulfonyl (or ethoxycarbonyl)-substituted 1,5-dien-3-ynes has been described.
(1E,5E)-1-磺酰基(或乙氧羰基)取代的1,5-二烯-3-炔的立体选择性合成已经被描述。
A Straightforward and Versatile Synthetic Approach to 1-Azabicyclic Alkaloids
A very straightforward route to 1-azabicyclo alkaloid scaffolds with several ring sizes is reported. The final bicyclic structures were built through a synthetic scheme that involved (i) the construction of dienic 4-piperidone systems by an imino-Diels−Alder reaction between aminotrienes and N-ω-vinylimines, in the presence of Yb(OTf)3, and (ii) the ring-closing metathesis reaction of these cyclic
Heteroethylene compounds and pharmaceutical and cosmetic compositions containing same
申请人:Galderma Research & Development S.N.C.
公开号:US06444709B1
公开(公告)日:2002-09-03
The invention relates to novel heteroethynylenic compounds having the general formula (I):
as well as to the use of these compounds in pharmaceutical compositions intended for use in human or veterinary medicine (dermatological, rheumatic, respiratory, cardiovascular and ophthalmological complaints in particular), or alternatively in cosmetic compositions.