The invention provides compounds having the general formula I:
and pharmaceutically acceptable salts thereof, wherein the variables R
A
, R
AA
, subscript n, ring A, X
2
, L, subscript m, X
1
, R
1
, R
2
, R
3
, R
4
, R
5
, and R
N
have the meaning as described herein, and compositions containing such compounds and methods for using such compounds and compactions.
A process for producing a compound of the formula (II):
wherein Hal1 represents halogen and R1 and R2 each independently represents halogen, alkyl, alkoxy, nitro or cyano,
which comprises allowing a halogenating agent to react with a compound of the formula (I):
wherein Alk represents branched alkyl and R1 and R2 are as defined above.