[EN] HETEROCYCLIC ANTI-VIRAL COMPOUNDS COMPRISING METABOLIZABLE MOIETIES AND THEIR USES [FR] COMPOSES ANTIVIRAUX HETEROCYCLIQUES COMPORTANT DES GROUPES FONCTIONNELS METABOLISABLES ET LEURS UTILISATIONS
[EN] A PROCESS FOR THE PREPARATION OF INTERMEDIATES USEFUL IN THE PRODUCTION OF ALISKIREN<br/>[FR] PROCÉDÉ DE PRÉPARATION D'INTERMÉDIAIRES UTILES DANS LA PRODUCTION DE L'ALISKIREN
申请人:WATSON LAB INC
公开号:WO2012078147A1
公开(公告)日:2012-06-14
A process for preparing 4-[(2R)-2-X-methyl)-3-methylbutyl]-1 -methoxy-2-3(3- methoxypropoxy)-benzene wherein X is a leaving group and use of this compound in the synthesis of aliskiren.
decarboxylative aldol reaction between malonic acid half-oxyesters and various carbonyls with carboxylate assistance was developed, affording structurally diverse β-hydroxy esters with good yields and enantioselectivities under mild conditions. Importantly, the broad substrate scope of this methodology enabled rapid accesses to several natural products and their analogues as exemplified by phenylpropanoid, phaitanthrin
The highly enantioselective phase-transfer catalytic mono-alkylation of malonamic esters
作者:Mi-hyun Kim、Sea-hoon Choi、Yeon-Ju Lee、Jihye Lee、Keepyung Nahm、Byeong-Seon Jeong、Hyeung-geun Park、Sang-sup Jew
DOI:10.1039/b821468a
日期:——
The phase-transfer catalytic alkylation of N,N-dialkylmalonamic tert-butyl esters in the presence of 1 mol% of (S,S)-3,4,5-trifluorophenyl-NAS bromide afforded highly enantioselective (S)-mono-α-alkylated products (up to 96% ee), which could be readily converted into versatile chiral building blocks without loss of chirality.
Development of catalytic deacylative alkylations (DaA) of 3-acyl-2-oxindoles: total synthesis of meso-chimonanthine and related alkaloids
作者:Nivesh Kumar、Mrinal Kanti Das、Santanu Ghosh、Alakesh Bisai
DOI:10.1039/c6cc10228j
日期:——
We present an effective deacylative alkylation strategy for the construction of a variety of 2-oxindoles bearing all-carbon quaternary center at the pseudobenzylic position. A wide variety of products with quaternary...
Synthesis of bone-targeted oestrogenic compounds for the inhibition of bone resorption
作者:Philip C Bulman Page、Jonathan P.G Moore、Ian Mansfield、Michael J McKenzie、Wayne B Bowler、James A Gallagher
DOI:10.1016/s0040-4020(00)01164-9
日期:2001.2
Syntheses have been realised for several members of a new class of potential bone resorption inhibitors consisting of steroidal oestrogenic compounds linked at the 17 position to a geminal bis(phosphonic acid) moiety through an ester linkage. The approach used has the potential to allow other biologically active compounds to be coupled to the geminal bisphosphonate unit.