Synthesis and chemical properties of 8-aryl-7-acyl-1-6-dimethyl-6-hydroxy-4-cyano-5,6,7,8-tetrahydro-3(2H)-isoquinolinones and isoquinolinethiones
1996
8-Aryl-7-acetyl-1, 6-dimethyl-6-hydroxy-4-cyano-5, 6, 7, 8-tetrahydro-3(2H)-isoquinolinones and -isoquinolinethiones and their sodium salts were obtained by the reaction of cyanoacetamide and cyanothioacetamide with 3-aryl-2, 4-diacetyl-5-methyl-5-hydroxycyclohexanonesinbasicrnedium. 8-Aryl-7-acetyl-6-methoxycarbonyl-1, 6-dimethyl-4-cyano-5, 6, 7, 8-tetrahydro-3(2H)-isoquinolinones were obtained by the reaction of acetyl chloride and the above isoquinolinone sodium salts. The reaction of iodoacetamide and the above isoquinolinethione sodium salts yielded 8-aryl-7-acetyl-3-carbamoylmethylthio-1, 6-dimethyl-4-cyano-5, 6, 7, 8-tetra-hydroisoquinolines, which were cyclized into 1-amino-6-aryl-7-acetyl-2-carbamoyl-5, 8-dimethyl-8-hydroxy-6, 7, 8, 9-tetrahydrothiophene[2,3-c]isoquinolines in basic medium.
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