3-Borylbenzynes were generated in situ from 6-boryl-2-iodophenyl trifluoromethanesulfonates using i-PrMgCl·LiCl and applied to Diels–Alder reactions with substituted furans and pyrroles. The reactions allowed good functional group compatibility and produced the cycloadducts in high yields with high distal selectivities. Effective conversion of the boryl group of the products was achieved. A series
Studies toward Diazonamide A: Initial Synthetic Forays Directed toward the Originally Proposed Structure
作者:K. C. Nicolaou、Scott A. Snyder、Xianhai Huang、Klaus B. Simonsen、Alexandros E. Koumbis、Antony Bigot
DOI:10.1021/ja040090y
日期:2004.8.1
A brief introduction into the chemistry of diazonamide A (1) is followed by first-generation sequences to access the originally proposedstructure for this unusual marine natural product. These explorations identified a route capable of delivering a model compound possessing the complete heteroaromatic core of the natural product, highlighting in the process several unanticipated synthetic challenges
对重氮酰胺 A (1) 的化学进行简要介绍,然后是第一代序列,以访问这种不寻常的海洋天然产品最初提出的结构。这些探索确定了一条能够提供具有天然产物的完整杂芳族核心的模型化合物的路线,在此过程中突出了几个意料之外的合成挑战,这些挑战导致了新方法以及成功应用于全功能化中间体的改进合成计划.
Synthesis of 1,1,6,6-tetramethylphosphajulolidine †
作者:Peter G. Edwards、Stephen J. Paisey、Robert P. Tooze
DOI:10.1039/b004525j
日期:——
The fused tricyclic dialkyl(phenyl)phosphine, 1,1,6,6-tetramethylphosphajulolidine 11, has been synthesised on a large scale with a view to verifying a computationally derived theory of ligand influence upon the catalytic alkoxycarbonylation of propyne.
Biphenyl derivatives substituted by an aromatic or heteroaromatic radical and pharamaceutical and cosmetic compositions containing same
申请人:Galderma Research & Development
公开号:US06316009B1
公开(公告)日:2001-11-13
“Biphenyl derivatives substituted with an aromatic or heteroaromatic radical, and pharmaceutical and cosmetic compositions containing them”
in which:
Ar represents an aromatic or a heteroaromatic radical optionally substituted, in particular, with an alkyl or a carboxyl group,
R2 and R3 represent, in particular, H or alkyl, or
R2 and R3, taken together, form a 5- or 6-membered ring,
R4 and R5 represent, in particular, H or halogen,
R6 represents, in particular, H or lower alkyl,
and the salts of the compounds of formula (I).
These compounds can be used in particular in the treatment of dermatological complaints associated with a keratinization disorder, and for combating ageing of the skin.
[EN] HETEROCYCLIC GLP-1 AGONISTS<br/>[FR] AGONISTES HÉTÉROCYCLIQUES DE GLP-1
申请人:GASHERBRUM BIO INC
公开号:WO2022028572A1
公开(公告)日:2022-02-10
This disclosure relates to GLP-1 agonists of Formula (I), including pharmaceutically acceptable salts and solvates thereof, and pharmaceutical compositions including the same.