2-SILYLOXYTETRAHYDROTHIENOPYRIDINE, SALT THEREOF, AND PROCESS FOR PRODUCING THE SAME

摘要

2-Silyloxy-4,5,6,7-tetrahydrothieno[3,2-c]-pyridines represented by general formula (I), salts thereof, a process for producing the same, (wherein R?1, R2 and R3¿ each independently represent C¿1?-C10 alkyl or aryl), 5-alkyl-2-silyloxy-4,5,6,7-tetrahydrothieno[3,2-c]pyridines represented by general formula (IV) and useful as intermediates in the synthesis of antithrombocytic agents or esterase inhibitors, and a process for producing the same, wherein R?1, R2 and R3¿ are each as defined above; R4 represents hydrogen, C¿2?-C10 alkoxycarbonyl, C2-C10 aryl or C4-C10 cycloalkylcarbonyl; and R?5¿ represents halogeno, C¿1?-C4 alkyl or C1-C4 alkoxy.