The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 16, 1980
Filed:
May. 16, 1978
Sumiro Isoda, Tokyo, JP;
Munefumi Kanao, Tokyo, JP;
Yoshifumi Ichikawa, Tokyo, JP;
Takeshi Hashizume, Tokyo, JP;
Kiyoshi Irie, Tokyo, JP;
Yoshio Kasai, Tokyo, JP;
Daiichi Seiyaku Co., Ltd., Tokyo, JP;
Abstract
Compounds, which have antispasmodic effects, represented by the following formula (I) ##STR1## wherein R.sup.1 and R.sup.2, which may be the same or different, each represents a hydrogen atom, an alkoxy group or, when taken together, R.sup.1 and R.sup.2 represent an alkylenedioxy group; R.sup.3 represents a hydrogen atom, an alkyl group or a cycloalkyl group; R.sup.4, R.sup.5 and R.sup.6, which may be the same or different, each represents a hydrogen atom, an alkoxy group, an alkyl group, a halogen atom, a hydroxyl group or, when two of R.sup.4, R.sup.5 and R.sup.6 are taken together, they represent an alkylenedioxy group; and A represents a straight or branched chain alkylene group having 2 to 10 carbon atoms or an alkylene group having 2 to 10 carbon atoms and interrupted with an oxygen atom forming an ether bond therein, and the therapeutically useful acid-addition salts thereof; and a process for producing the same.