Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1972-09-12
1976-03-09
Terapane, John F.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
2603403, 2603405, 2603406, 260465R, 260465D, 260516, 424278, 424317, C07C 6500, C07C 6522
Patent
active
039431690
ABSTRACT:
The present invention relates to a compound of the formula: ##SPC1##
Wherein R.sub.1 is an alkyl group of 1 to 4 carbons, an alkoxy group of 1 to 4 carbons or hydroxyl, and R.sub.2 and R.sub.3 are either the same or different and may be an alkyl group of 1 to 4 carbons, an alkoxy group of 1 to 4 carbons, hydroxyl, halogen or an alkylthio group of 1 to 4 carbons, or they are, connecting with each other, an alkylenedioxy group of 1 to 3 carbons, with the proviso that when R.sub.1 is an alkoxy group, at least one of R.sub.2 and R.sub.3 is an alkoxy group or an alkylthio group, or R.sub.2 and R.sub.3 are, connecting with each other, an alkylenedioxy group; when R.sub.1 is an alkyl group or hydroxyl, R.sub.2 and R.sub.3 are the same or different and may be an alkoxy group, an alkylthio group or, connecting with each other, an alkylene dioxy group; when R.sub.2 and R.sub.3 are methoxy, R.sub.1 is an alkyl group of 2 or 3 carbons, an alkoxy group of 2 to 4 carbons or hydroxyl, and when R.sub.2 is methyl and R.sub.3 is methoxy, R.sub.1 is an alkoxy group of 2 to 4 carbons or its pharmaceutically acceptable salts. The present invention also provides for a method of preparing the aforementioned compounds. The present compounds are characterized by exhibiting strong spasmolytic or relaxing action on the gall bladder, the common biliary duct, as well as exhibiting strong choleric activity and low toxicity.
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Murata Tadakazu
Nohara Akira
Sanno Yasushi
Sugihara Hirosada
Takeda Chemical Industries, Ltd
Terapane John F.
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