HETEROCYCLIC DERIVATIVES AND THEIR USE AS INTEGRIN INHIBITORS
申请人:AstraZeneca AB
公开号:EP1133484A2
公开(公告)日:2001-09-19
[EN] CHEMICAL COMPOUNDS<br/>[FR] COMPOSES CHIMIQUES
申请人:ZENECA LTD
公开号:WO2000005223A2
公开(公告)日:2000-02-03
Compound of formula (I) wherein: A is a bicyclic heteroaryl, optionally substituted with one or more substituents; B is aryl or a mono or bicyclic heteroaryl, each of which can be optionally subsituted with one or more subsituents; Z is -X(CRaRb)aCO, -NH, -CO or the group X-(CH2)bCONH (CH2)cNH where X is oxygen, sulphur, amino, alkylamino or a direct bond, R?a and Rb¿ are independently hydrogen or C¿1-4? alkyl, a is an integer from 1 to 4, b is 1 or 2 and c is from 2 to 5, and; W is -NHCH(R?w¿)CO- or OC(Rw)CHNH where Rw is -CH¿2?CH(CH3)2-CH2CH2S(CH3) or CH2CH2S(O2)(CH3); q is 0 or 1 and when q is 0 Z is linked to the group W by the formation of an amide bond between Z and Y, and when q is 1 Z is linked to the group W by the formation of an amide bond between Z and W and W is linked to the group Y by the formation of an amide bond between W and Y; Y is a fragment derived from the C-terminus of a compound which inhibits the interaction between the integrin αIIbβ3 and its ligand fibrinogen; R?1¿ is hydrogen, C¿1-5?alkyl, C1-3 alkanoyl or C1-3 alkoxycarbonyl; or a pharmaceutically acceptable salt or in vivo hydrolysable derivative thereof.
Electrochemical carboxylation of cinnamate esters in MeCN
作者:Huan Wang、Kai Zhang、Ying-Zi Liu、Mei-Yu Lin、Jia-Xing Lu
DOI:10.1016/j.tet.2007.10.104
日期:2008.1
of cinnamate esters has been carried out by cathodic reduction of CC bond in an undivided cell equipped with Mg sacrificial anode and using MeCN saturated with CO2 as solvent. The yields and the ratio of mono- and dicarboxylicacids are strongly affected by various factors: cathodic material, current, charge, and temperature. The highest yield (78.9%) was obtained starting from ethyl cinnamate. Cyclic