申请人:Bayer Aktiengesellschaft
公开号:US05138056A1
公开(公告)日:1992-08-11
The invention relates to new polycyanopyrimidines of the formula ##STR1## in which R represents chlorine or cyano, and to a process for their preparation.
本发明涉及公式##STR1##的新聚氰基嘧啶,其中R代表氯或氰,以及它们的制备方法。