Patent ID: 7989622

Claim:
A Compound according to Formula I(a): or a single stereoisomer or mixture of stereoisomers thereof and optionally as a pharmaceutically acceptable salt thereof, wherein: W 1 , W 2 , W 3 , and W 4 are —C(H)—; R 50 is hydrogen; R 51 is methyl; R 52 is hydrogen; R 53 is hydrogen or alkoxy; and R 54 is hydrogen, alkyl, alkoxy, or halo; or R 53 and R 54 together with the carbons to which they are attached form a 6-membered heteroaryl; and R 3 is halo or methyl; and R 3a is —N(R 7 )C(O)—C 1 -C 6 -alkylene-N(R 7a )(R 7b ) where R 7 is hydrogen and R 7a and R 7b are independently hydrogen, alkyl, aminoalkyl, alkylaminoalkyl, or dialkylaminoalkyl.