159594-51-1Relevant articles and documents
Triazolopyridazine derivatives, their production and use
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, (2008/06/13)
A compound of the formula: STR1 wherein R1 is a hydrogen atom, a lower alkyl group or a halogen atom; R2 and R3 are a hydrogen atom, a lower alkyl group or a 5- to 7-membered cyclic group formed together with the adjacent --C=C--; X is an oxygen atom, a sulfur atom or a methylene group; Y is an optionally substituted methylene group, a divalent 3- to 7-membered homo- or heterocyclic group; R6 and R7 are a hydrogen atom, a lower alkyl group, a cycloalkyl group, an aryl group, or a nitrogen-containing heterocyclic group formed together With the adjacent nitrogen atom; m is an integer of 0 to 4; and n is an integer of 0 to 4, or a salt thereof. Said compound has an excellent anti-PAF activity, antiallergic action, etc., thus is useful as an antiasthmatic agent.