Patent ID: 7964593

Claim:
A compound of formula I or a pharmaceutically acceptable salt thereof or stereoisomeric forms thereof, wherein R 1 is hydrogen, R 2 is hydrogen or C 1-20 -alkyl, NR 3 R 3a is a group of formula R 4 is hydrogen, R 5 is hydrogen; nitro; halogen; azido; cyano; —S—C 1-4 -alkyl; —SO—C 1-4 -alkyl; —SO 2 —C 1-4 -alkyl; —SONH 2 ; C 1-20 -alkyl unsubstituted or substituted by halogen; or C 1-20 -alkoxy unsubstituted or substituted by halogen, R 6 is hydrogen, C 1-20 -alkyl or halogen, R 7 is hydrogen, C 1-20 -alkyl or halogen, Y is O, S, —CR 12 R 13 —, NR 14 or —C(═O)— R 10 and R 10a are independently selected from hydrogen, C 1-4 -alkyl, halogen, hydroxy or methoxycarbonyl, or R 10 and R 10a together form a C 3-6 -alkylene, R 12 is hydrogen, C 1-4 -alkyl, halogen or hydroxy, R 13 is hydrogen, or CR 12 R 13 is dioxolanyl, R 14 is aryl, heterocycle or a group of formula —V—R′ 5 , V is C 1-12 -alkylene, R 15 is aryl or heterocycle, n is 1.