| 摘要 |
The present invention relates to a 2-silyloxy-4,5,6,7-tetrahydrothienoÄ3,2-cÜpyridine represented by the formula (I): <CHEM> wherein R<1>, R<2> and R<3> each independently represent an alkyl group having 1 to 10 carbon atoms or an aryl group, and a salt thereof and a process for preparing the same, and a 5-alkyl-2-silyloxy-4,5,6,7-tetrahydrothienoÄ3,2-cÜ-pyridine represented by the formula (IV): <CHEM> wherein R<1>, R<2> and R<3> represent the same meanings as described above; R<4> represents a hydrogen atom, an alkoxycarbonyl group having 2 to 10 carbon atoms, an acyl group having 2 to 10 carbon atoms or a cycloalkylcarbonyl group having 4 to 10 carbon atoms; and R<5> represents a halogen atom, an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms, which is useful as a synthetic intermediate of an antiplatelet medicine and an elastase inhibitor, etc., and a process for preparing the same. |
