Patent ID: 7998964

Claim:
A compound according to Formula (II): wherein: A is N; R 1 is selected from H, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 3 -C 8 -cycloalkyl, heterocycloalkyl, aryl, heteroaryl, C 3 -C 8 -cycloalkyl C 1 -C 6 alkyl, heterocycloalkyl C 1 -C 6 alkyl, heteroaryl C 1 -C 6 alkyl, amino or alkoxy; R 2 is selected from H, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 3 -C 8 -cycloalkyl, heterocycloalkyl, alkoxy, aryl or heteroaryl; R 3 is selected from H, C 1 -C 6 alkyl, C 2 -C 6 alkenyl or C 2 -C 6 alkynyl; R 4 , R 5 , R 6 and R 7 are independently selected from H, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl; or R 4 and R 7 form together a —CH 2 — linkage; n is an integer selected from 1, 2, 3, 4, 5 or 6; and PG 1 is H or a protecting group selected from benzyl, t-butyl, THP, TMS or TBS.