[EN] CARBOCYCLIC- AND HETEROCYCLIC-SUBSTITUTED HEXAHYDROPYRANO[3,4-d][1,3]THIAZIN-2-AMINE COMPOUNDS<br/>[FR] COMPOSÉS HEXAHYDROPYRANO[3,4-D][1,3]THIAZIN-2-AMINE SUBSTITUÉS CARBOCYCLIQUES ET HÉTÉROCYCLIQUES
申请人:PFIZER
公开号:WO2014097038A1
公开(公告)日:2014-06-26
The present invention provides compounds of formula (I), wherein the variables R1, R2, R5 and b are as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.
A protocol for the anti-Markovnikov hydrofunctionalization of alkenes has been developed by the use of a benzylgroup as a traceless redox-active hydrogen donor. Under copper catalysis and in the presence of CF3- or N3-containing hypervalent iodine reagents, a series of homoallylic alcohol derivatives were hydrofunctionalized regioselectivity. A similar principle was also applied to the hydrofunctionalization
[EN] C5-C6-OXACYCLIC FUSED IMINOPYRIMIDINONE COMPOUNDS AS BACE INHIBITORS, COMPOSITIONS, AND THEIR USE<br/>[FR] COMPOSÉS IMINOPYRIMIDINONES CONDENSÉS OXACYCLIQUES EN C5-C6 UTILISÉS COMME INHIBITEURS DE BACE, COMPOSITIONS ET UTILISATION ASSOCIÉES
申请人:MERCK SHARP & DOHME
公开号:WO2016085780A1
公开(公告)日:2016-06-02
In its many embodiments, the present invention provides certain C5-C6-oxacyclic fused iminopyrimidinone compounds, including compounds Formula (I): or a tautomer thereof, and pharmaceutically acceptable salts of said compounds and said tautomers, wherein RN, R1, RA, ring A, m, n, -L1-, ring B, RB, and p are as defined herein. The novel compounds of the invention are useful as BACE inhibitors and/or for the treatment and prevention of various pathologies related thereto. Pharmaceutical compositions comprising one or more such compounds (alone and in combination with one or more other active agents), and methods for their preparation and use, including for the possible treatment of Alzheimer's disease, are also disclosed.
Study on the coupling of acyclic esters with alkenes – the synthesis of 2-(2-hydroxyalkyl)cyclopropanols via cascade cyclization using allylsamarium bromide
作者:Yawei Tu、Liejin Zhou、Ruifeng Yin、Xin Lv、Robert A. Flowers II、Kimberly A. Choquette、Huili Liu、Qingsheng Niu、Xiaoxia Wang
DOI:10.1039/c2cc34630c
日期:——
The radical cyclization between aliphatic acyclic esters and alkenes was achieved unprecedentedly in the presence of allylsamarium bromide with HMPA and H2O as additives. The cascade radical cyclizationâring-openingâanionic cyclization allowed facile and efficient access to 2-(2-hydroxyalkyl)cyclopropanols from readily available materials.
Allylsamarium Bromide-Mediated Cascade Cyclization of Homoallylic Esters. Synthesis of 2-(2-Hydroxyalkyl)cyclopropanols and 2-(2-Hydroxyethyl)bicyclo[2.1.1]hexan-1-ols
作者:Mengmeng Shen、Yawei Tu、Guanqun Xie、Qingsheng Niu、Hui Mao、Tingting Xie、Robert A. Flowers、Xin Lv、Xiaoxia Wang
DOI:10.1021/jo501797w
日期:2015.1.2
In continuation of our previous study on the intramolecular reductive coupling of simple homoallylic esters promoted by allylSmBr/HMPA/H2O, which afforded a facile synthesis of 2-(2-hydroxyalkyl)cyclopropanols, here we report the reductive cascade cyclization of but-3-enyl but-3-enoates mediated by allylSmBr/HMPA/CuCl2·2H2O, in which the two C═C bonds were successively coupled to allow the construction