申请人:SmithKline Corporation
公开号:US04017633A1
公开(公告)日:1977-04-12
Substituted 3-(1-aminoethylidene)-5-cinnamoyl-2H-pyran-2,6(3H)-diones useful as inhibitors of certain antigen-antibody reactions, particularly in alleviating allergic manifestations such as asthma, are prepared by reaction of a 3-(1-aminoethylidene)-5-acetyl-2H-pyran-2,6(3H)-dione with an appropriately substituted benzaldehyde.
用适当取代的苯甲醛与3-(1-氨乙烯基)-5-乙酰基-2H-吡喃-2,6(3H)-二酮反应制备出的取代的3-(1-氨乙烯基)-5-肉桂酰基-2H-吡喃-2,6(3H)-二酮可用作某些抗原-抗体反应的抑制剂,特别是在缓解过敏症状如哮喘方面有用。