Details for Patent: 4,572,912

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Summary for Patent: 4,572,912

Title:	Thiazolidine derivatives, their preparation and compositions containing them
Abstract:	The compounds of formula (I): ##STR1## [in which: R.sup.1 and R.sup.2 are the same or different and each represents hydrogen or C.sub.1 -C.sub.5 alkyl; R.sup.3 represents hydrogen, an acyl group, a (C.sub.1 -C.sub.6 alkoxy)carbonyl group or an aralkyloxycarbonyl group; R.sup.4 and R.sup.5 are the same or different and each represents hydrogen, C.sub.1 -C.sub.5 alkyl or C.sub.1 -C.sub.5 alkoxy, or R.sup.4 and R.sup.5 together represent a C.sub.1 14 C.sub.4 alkylenedioxy group; n is 1, 2 or 3; W represents the --CH.sub.2 --, >CO or >CH--OR.sup.6 group (in which R.sup.6 represents any one of the atoms or groups defined for R.sup.3 and may be the same as or different from R.sup.3); and Y and Z are the same or different and each represents oxygen or imino] and pharmaceutically acceptable salts thereof have various valuable therapeutic effects on the blood system and may be prepared by a process which includes reacting a corresponding halopropionic acid derivative with thiourea.
Inventor(s):	Yoshioka; Takao (Hiromachi, JP), Kitazawa; Eiici (Hiromachi, JP), Kurumada; Tomoyuki (Hiromachi, JP), Yamazaki; Mitsuo (Hiromachi, JP), Hasegawa; Kazou (Hiromachi, JP)
Assignee:	Sankyo Company Limited (Tokyo, JP)
Application Number:	06/644,996
Patent Claim Types: see list of patent claims	Compound; Use; Composition;

Drugs Protected by US Patent 4,572,912

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Foreign Priority and PCT Information for Patent: 4,572,912

Foriegn Application Priority Data
Foreign Country	Foreign Patent Number	Foreign Patent Date
Japan	58-158375	Aug 30, 1983

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