Dioxolobenzisoxazole derivatives of the formula ##STR1## wherein R.sub.1 is a phenyl group which may be substituted with a halogen atom, a lower alkyl group having 1-3 carbon atoms or a lower haloalkyl group, or a thienyl group; R.sub.2 is a hydrogen atom or a lower alkyl group having 1-4 carbon atoms; and X and Y which may be the same or different represent a hydrogen atom or a halogen atom, as well as non-toxic salts thereof wherein R.sub.2 is a hydrogen atom, a process for preparing the same and a pharmaceutical composition containing the same are disclosed. The derivatives have diuretic and uricosuric activities and, therefore, are useful as a drug for treating hyperuricemia or hypertension.
Dioxolobenzisoxazole derivatives and process for preparing the same
申请人:Chugai Seiyaku
Kabushiki Kaisha
公开号:EP0197533B1
公开(公告)日:1991-08-14
US4732906A
申请人:——
公开号:US4732906A
公开(公告)日:1988-03-22
Studies on Uricosuric Diuretics. III. Substituted 1,3-Dioxolo(4,5-f)-1,2-benzisoxazole-6-carboxylic Acids and 1,3-Dioxolo(4,5-g)-1,2-benzisoxazole-7-carboxylic Acids.
作者:Haruhiko SATO、Takashi DAN、Etsuro ONUMA、Haruko TANAKA、Bunya AOKI、Hiroshi KOGA
DOI:10.1248/cpb.40.109
日期:——
5-f]-1,2-benzisoxazole-6-carboxylic acids 13 and 1,3-dioxolo[4,5-g]-1,2-benzisoxazole-7-carboxylic acids 14 were synthesized and evaluated for diuretic and uricosuric activities in rats. Most of the benzisoxazole derivatives 13 and 14 showed potent diuretic activities. Moderate uricosuric activities were also found in 14a, 14b, and 14f.