| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for preparing cyclic carbamate and thiocarbamate (1). <P>SOLUTION: The method includes the steps of: (a) reacting a cyanopyrrole with a coupling agent; (b) converting the product of (a) to a cyanopyrrole substituted anthranilic alcohol or nitro alcohol thereof; (c) reducing the anthranilic nitro alcohol to the cyanopyrrole substituted anthranilic alcohol; and (d) converting the cyanopyrrole substituted alcohol to a compound (1). <P>COPYRIGHT: (C)2013,JPO&INPIT |
