Certain pyridyl, thienyl or furyl propenoic acids or esters having
申请人:Beecham Group p.l.c.
公开号:US04732901A1
公开(公告)日:1988-03-22
Compounds of formula (I): ##STR1## in which R.sub.1 is hydrogen or C.sub.1-6 alkyl; R.sub.2 is hydrogen or a group --CO.sub.2 R.sub.3 where R.sub.3 is hydrogen or C.sub.1-6 alkyl; n is an integer of from 2 to 12; X represents a double or triple bond, and each of A and B represents hydrogen when X is a double bond, or both A and B are absent when X is a triple bond; and ##STR2## represents an aromatic heterocyclic ring, are disclosed as inhibitors of 5-lipoxygenase.
A heterocyclic fused selenophenes and a method of making a heterocyclic fused selenophenes of formula (1):
wherein X is S or Se, Y is S or Se, wherein one or both of X and Y is Se, R is a substituent group. The monomer being capable of polymerization to form an electrically conductive polymer or oligomer.
A heterocyclic fused selenophenes and a method of making a heterocyclic fused selenophenes of formula (1):
wherein X is S or Se, Y is S or Se, wherein one or both of X and Y is Se, R is a substituent group. The monomer being capable of polymerization to form an electrically conductive polymer or oligomer.
Substituted heterocyclic acrylic acids and esters, their preparation and pharmaceutical compositions containing them
申请人:BEECHAM GROUP PLC
公开号:EP0194093A2
公开(公告)日:1986-09-10
Compounds of formula (I):
in which
Ri is hydrogen or C1-6 alkyl;
R2 is hydrogen or a group -C02R3 where R3 is hydrogen or C1-6 alkyl;
n is an integer of from 2 to 12;
X represents a double or triple bond, and each of A and B represents hydrogen when X is a double bond, or both A and B are absent when X is a triple bond; and
represents an aromatic heterocyclic ring, are disclosed as inhibitors of 5-lipoxygenase.