Efficient protocols enabling the rapid installation of trifluoromethyl, as well as further functionalized fluoroalkyl groups by an electrophilic perfluoroalkylation of lactam-derived ketene silyl amides (KSAs) using hypervalentiodinereagents 1...
[EN] LACTAM DERIVATIVES USEFUL AS OREXIN RECEPTOR ANTAGONISTS<br/>[FR] DÉRIVÉS DE LACTAME UTILES EN TANT QU'ANTAGONISTES DU RÉCEPTEUR DE L'OREXINE
申请人:ACTELION PHARMACEUTICALS LTD
公开号:WO2012063207A1
公开(公告)日:2012-05-18
The present invention relates to lactam derivatives of formula (I) wherein Y, R1, R2 and R3 are as described in the description, to their preparation, to pharmaceutically acceptable salts thereof, and to their use as pharmaceuticals, to pharmaceutical compositions containing one or more compounds of formula (I), and especially to their use as orexin receptor antagonists.
Exploration of the interrupted Fischer indolization reaction
作者:Alex W. Schammel、Ben W. Boal、Liansuo Zu、Tehetena Mesganaw、Neil K. Garg
DOI:10.1016/j.tet.2010.02.050
日期:2010.6
molecules has been developed. The strategy involves the condensation of hydrazines with latent aldehydes to ultimately deliver indoline-containing products by way of an interrupted Fischer indolization sequence. The method is convergent, mild, operationally simple, broad in scope, and can be used to access enantioenriched products. In addition, our approach is amenable to the synthesis of furoindoline
已经开发了一种收敛方法来访问存在于大量生物活性分子中的稠合二氢吲哚环系统。该策略涉及肼与潜在醛的缩合,以通过中断的 Fischer 吲哚化序列最终提供含二氢吲哚的产物。该方法收敛、温和、操作简单、适用范围广,可用于获得对映体富集的产品。此外,我们的方法适用于呋喃二氢吲哚和吡咯烷二氢吲哚天然产物的合成,如 physovenine 和 debromoflustramine B 的简洁正式全合成所证明的那样。 该策略可能会合成更复杂的目标,如公社生物碱。
Discovery of 3-Piperidinyl-1-cyclopentanecarboxamide as a Novel Scaffold for Highly Potent CC Chemokine Receptor 2 Antagonists
作者:Lihu Yang、Gabor Butora、Richard X. Jiao、Alex Pasternak、Changyou Zhou、William H. Parsons、Sander G. Mills、Pasquale P. Vicario、Julia M. Ayala、Margaret A. Cascieri、Malcolm MacCoss
DOI:10.1021/jm070166b
日期:2007.5.1
restrictions to a linear aminobutyramide CC chemokine receptor 2 (CCR2) antagonist lead (2) led to the discovery of a 1,3-disubstituted cyclopentane scaffold with enhanced hCCR2 receptor binding and antagonist activity. (1S,3R)-N-[3,5-Bis(trifluoromethyl)benzyl]-1-methyl-3-[(1R,3'R)-methyl-1'H-spiro[ indene-1,4'-piperidin]-1'-yl]cyclopentanecarboxamide (16) had IC50 of 1.3 nM (binding) and 0.45 nM (functional
Synthesis and reactivity of methyl γ-azido butyrates and ethyl σ-azido valerates and of the corresponding acid chlorides as useful reagents for the aminoalkylation
作者:N. Khoukhi、M. Vaultier、R. Carrié
DOI:10.1016/s0040-4020(01)81492-7
日期:1987.1
corresponding acid chlorides 22 and 23 are shown to be interesting reagents for the nucleophilic and electrophilic aminoalkylation. α-substituted methyl γ-azidobutyrates 13 and ethyl σ-azido valerates 14 are easily accessible by alkylation of the lithium enolates of the parent compounds 13a and 14a respectively. Their chemoselective reduction leads to 3-substituted lactams 18 and 19. The acid chlorides