Novel heterocyclic derivatives of formula (I):
or a pharmaceutically acceptable salt, solvate or polymorph thereof, including all tautomers and stereoisomers thereof, wherein R
a
, n, R
1
and R
2
are as defined herein, as inhibitors of glutaminyl cyclase (QC, EC 2.3.2.5).
式(I)的新颖杂环衍
生物:或其药用可接受的盐、溶剂合物或多晶形式,包括其所有互变异构体和立体异构体,其中Ra、n、R1和R2如本文所定义,作为谷
氨酰环化酶(QC,
EC 2.3.2.5)的
抑制剂。