| 摘要 |
Title compds. ≮I; R = OH, lower alkoxy, NH2, OM(M = alkli or alkali earth metal); R1 = aralkyl, phenyl, furyl, thienyl, pyridyl, naphtyl; n = 1, 2≉, useful as blood lowering agent, were prepd. by cyclization of thiazolydine carbothionic acid (II) to give III followed by hydrolysing III. Thus, Et3N was added to 2-(2-hydroxyphenyl)-4-thiazolydine carboxylic acid and the mixt. was refluxed with thionylchloride. After removing solvent, the resultant reacted with potassium bisulfide to give 2-(2-hydroxyphenyl)-4-thiazolydinecarbothionic acid.
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