Wherein n is an integer of from 0 to 3; R
1A
is a 5-membered aromatic heterocyclic group containing at least one oxygen atom; R
2A
is —COR
8
(wherein R
8
is aryl); R
3A
is hydrogen or lower alkyl; and R
12
represents cycloalkyl, aryl, aralkyl, alicyclic heterocyclic group, aromatic heterocyclic group, alicyclic hetocyclic-alkyl, or aromatic heterocyclic-alkyl, and R
1A
, R
2A
, R
3A
and R
12
are individually optionally substituted.
其中n是0到3的整数;R1A是一个含有至少一个
氧原子的5-成员芳香杂环基团;R2A是-COR8(其中R8是芳香基);R3A是
氢或较低的烷基;而R12代表
环烷基,芳香基,芳基烷基,脂环杂环基团,芳香杂环基团,脂环杂
环烷基或芳香杂
环烷基,R1A,R2A,R3A和R12都可以个别地选择性地被取代。