申请人:Ciba-Geigy Corporation
公开号:US05488171A1
公开(公告)日:1996-01-30
A compound of formula ##STR1## where R.sup.1 and R.sup.2 are independently a C.sub.1 -C.sub.10 aliphatic radical, or R.sup.1 is a C.sub.1 -C.sub.10 aliphatic radical and R.sup.2 is a C.sub.6 -C.sub.10 aromatic radical, and R.sup.3 is a C.sub.1 -C.sub.8 aliphatic radical, a C.sub.3 -C.sub.8 cycloaliphatic radical, a C.sub.6 -C.sub.15 aromatic radical or a C.sub.7 -C.sub.13 araliphatic radical, provided that R.sup.3 is not methyl when R.sup.1 and R.sup.2 are each methyl, that R.sup.3 is not ethyl when R.sup.1 and R.sup.2 are each methyl and that R.sup.2 is not p-aminophenyl when R.sup.1 is methyl and R.sup.3 is ethyl.
式为##STR1##的化合物,其中R.sup.1和R.sup.2分别是C.sub.1 -C.sub.10脂肪基,或者R.sup.1是C.sub.1 -C.sub.10脂肪基而R.sup.2是C.sub.6 -C.sub.10芳香基,而R.sup.3是C.sub.1 -C.sub.8脂肪基,C.sub.3 -C.sub.8环脂基,C.sub.6 -C.sub.15芳香基或C.sub.7 -C.sub.13芳基脂基,前提是当R.sup.1和R.sup.2分别为甲基时,R.sup.3不是甲基,当R.sup.1和R.sup.2分别为甲基时,R.sup.3不是乙基,当R.sup.1为甲基且R.sup.3为乙基时,R.sup.2不是对氨基苯基。