| 摘要 |
NEW MATERIAL:The compound of formula I {R1 and R2 are H, alkyl, alkoxy, phenyl, etc., or together form group of formula II (R3 is alkyl, alkoxy, acyl, phenyl, etc.; n is 0-4); A is group of formula III or formula IV [R4-R7 are H, CN or B-R8 (B is Alk, CO, Alk-CO, SO2, Alk-SO2, etc.; Al is alkylene or alkenylene; R8 is H, halogen, amino, aryl, etc.)]}. EXAMPLE:3-Methyl-2-cyanoiminobenzothiazoline. USE:An antiulcer agent and a remedy for hepatopathy. PREPARATION:For example, a compound of formula VII can be produced by reacting a compound of formula V with a dimethyl cyanamidothiocarbonate of formula VI.
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