申请人:Schering AG
公开号:US04344790A1
公开(公告)日:1982-08-17
Novel carbaminic acid phenyl esters of the general formula ##STR1## are described, in which R.sub.1 is C.sub.1 -C.sub.2 -alkoxy-C.sub.1 -C.sub.2 -alkyl, di-C.sub.1 -C.sub.2 -alkoxy-C.sub.1 -C.sub.2 -alkyl, cyano-C.sub.1 -C.sub.2 -alkyl, halogen-C.sub.1 -C.sub.2 -alkyl, phenyl-C.sub.1 -C.sub.2 -alkyl, 1,3-dioxolan-2-yl-methyl, 2-methyl-1,3-dioxolan-4-yl-methyl, 2,2-dimethyl-1,3-dioxolan-4-yl-methyl or aminocarbonylmethyl; R.sub.2 is phenyl optionally mono- or disubstituted by one or more substituents selected from the group consisting of halogen, methyl and methoxy; and R.sub.3 is C.sub.1 -C.sub.8 alkyl, C.sub.2 -C.sub.8 alkenyl, cyclopropyl or trichloromethyl, or R.sub.1 is methyl or ethyl, R.sub.2 is .alpha.-cyanobenzyl or 1-cyano-2-phenylethyl and R.sub.3 is ethyl.
描述了一般公式为##STR1##的新型碳酸酯类化合物,其中R.sub.1为C.sub.1 -C.sub.2 -烷氧基-C.sub.1 -C.sub.2 -烷基,二烷氧基-C.sub.1 -C.sub.2 -烷基,氰基-C.sub.1 -C.sub.2 -烷基,卤代-C.sub.1 -C.sub.2 -烷基,苯基-C.sub.1 -C.sub.2 -烷基,1,3-二氧杂环戊烷-2-基-甲基,2-甲基-1,3-二氧杂环戊烷-4-基-甲基,2,2-二甲基-1,3-二氧杂环戊烷-4-基-甲基或氨基甲酰甲基;R.sub.2为苯基,可选择地单取代或双取代,取代基选自卤素、甲基和甲氧基;R.sub.3为C.sub.1 -C.sub.8 烷基,C.sub.2 -C.sub.8 烯基,环丙基或三氯甲基,或者R.sub.1为甲基或乙基,R.sub.2为α-氰基苄基或1-氰基-2-苯乙基,R.sub.3为乙基。