申请人:Mitsubishi Gas Chemical Company, Inc.
公开号:US05146025A1
公开(公告)日:1992-09-08
A compound represented by the formula: ##STR1## and a compound represented by the formula: ##STR2## wherein R is C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 alkoxy, which is an intermediate for producing the above compound (1) are disclosed.
本发明揭示了一种由以下式表示的化合物:##STR1## 和由以下式表示的化合物:##STR2## 其中R是C.sub.1-C.sub.3烷基或C.sub.1-C.sub.3烷氧基,该化合物(1)的中间体。