申请人:Takeda Chemical Industries, Ltd.
公开号:US03959280A1
公开(公告)日:1976-05-25
Novel 3-(disubstituted)aminoisothiazolo[3,4-d]-pyrimidines of the formula ##SPC1## Wherein R.sup.1, R.sup.2 and R.sup.3 are respectively alkyl, alkenyl, aryl, aralkyl or aralkenyl, each of which may be substituted, or R.sup.1 and R.sup.2 form together with the adjacent nitrogen a heterocyclic ring which may be substituted, R.sup.4 is hydrogen or alkyl and X is oxygen or imino with a proviso that when X is imino R.sup.4 is hydrogen, show an eminent adenosine-3',5'-cyclic phosphate phosphodiesterase-inhibitory activity, and exhibit excellent pharmacological actions such as antiinflammatory and sedative activities.
新型3-(二取代)氨基异噻唑并[3,4-d]-嘧啶的化学式为##SPC1##其中R.sup.1、R.sup.2和R.sup.3分别为烷基、烯基、芳基、芳基烷基或芳基烯基,每个都可以被取代,或者R.sup.1和R.sup.2与相邻的氮一起形成可能被取代的杂环环,R.sup.4为氢或烷基,X为氧或亚胺,但当X为亚胺时,R.sup.4为氢,表现出卓越的腺苷-3',5'-环磷酸磷酸二酯酶抑制活性,并展现出优秀的药理作用,如抗炎和镇静作用。