A compound of Formula or a salt thereof, wherein: the two dotted lines represent either two single or two double bonds; and R 1b and R 2b are present only if said two dotted lines are two single bonds; Q is: (i) (ii) (iii) or (iv) R 1a is: (i) H, -CN, -CF 3, -CH 3, -CR 8a R 8b OH, -CR 8a R 8b CR 8a R 8b OH, -CH CH 2 OH, -NHR 9, -C NR 10a R 10b, -C (morpholinyl), -C (piperazinyl), or -C (methyl piperazinyl); or (ii) R 1b, when present, is H or -CH 3, provided that if R 1a is H then R 1b is also H; R 2a is H, F, or Cl, provided that if R 1a is other than H then R 2a is H; R 2b, when present, is the same as R 2a; R 3 is H, F, or Cl; R 4 is H, F, Cl, or -CH 3; R 5a is H, F, Cl, -OCH 3, or -OCF 3; R 5b is H, F, Cl, -OCH 3, or -OCF 3; R 6a is H, -CH 3 or cyclopropyl; R 6c is H, -CH 3 or cyclopropyl; R 7a is -C CH=CH(R 11), -C C≡CR 12, or -S 2 CH=CH 2; R 7b is -C CH=CH 2; R 7c is -C CH=CH 2 or -C C≡CR 12; R 7d is -CN, -C CH=CH 2, or -C C≡CR 13; R 7e is -CH=CH 2 or -C≡CR 13; R 7f is pyrrolidinyl substituted with R 7c, -CH=CHC (morpholinyl), or -CH=CHC (pyrrolidinyl); R 8a is H or -CH 3; R 8b is H or -CH 3; R 9 is C 1-4 alkyl; R 10a and R 10b are independently H or -CH 3; R 11 is H or -CH 3; R 12 is H, C 1-4 alkyl, or cyclopropyl; and R 13 is H, C 1-4 alkyl, or cyclopropyl; with the provisos that: (a) if Q is and R 7d is -CN or -C CH=CH 2, then R 3 is H; and (b) if the dotted lines represent two single bonds, then: (i) Q is not (ii) R 11, if present, is H; and (iii) the compound of Formula is not: the two dotted lines represent either two single or two double bonds; and R 1b and R 2b are present only if said two dotted lines are two single bonds; Q is: (i) (ii) (iii) or (iv) (i) (ii) (iii) or (iv) R 1a is: (i) H, -CN, -CF 3, -CH 3, -CR 8a R 8b OH, -CR 8a R 8b CR 8a R 8b OH, -CH CH 2 OH, -NHR 9, -C NR 10a R 10b, -C (morpholinyl), -C (piperazinyl), or -C (methyl piperazinyl); or (ii) (i) H, -CN, -CF 3, -CH 3, -CR 8a R 8b OH, -CR 8a R 8b CR 8a R 8b OH, -CH CH 2 OH, -NHR 9, -C NR 10a R 10b, -C (morpholinyl), -C (piperazinyl), or -C (methyl piperazinyl); or (ii) R 1b, when present, is H or -CH 3, provided that if R 1a is H then R 1b is also H; R 2a is H, F, or Cl, provided that if R 1a is other than H then R 2a is H; R 2b, when present, is the same as R 2a; R 3 is H, F, or Cl; R 4 is H, F, Cl, or -CH 3; R 5a is H, F, Cl, -OCH 3, or -OCF 3; R 5b is H, F, Cl, -OCH 3, or -OCF 3; R 6a is H, -CH 3 or cyclopropyl; R 6c is H, -CH 3 or cyclopropyl; R 7a is -C CH=CH(R 11), -C C≡CR 12, or -S 2 CH=CH 2; R 7b is -C CH=CH 2; R 7c is -C CH=CH 2 or -C C≡CR 12; R 7d is -CN, -C CH=CH 2, or -C C≡CR 13; R 7e is -CH=CH 2 or -C≡CR 13; R 7f is pyrrolidinyl substituted with R 7c, -CH=CHC (morpholinyl), or -CH=CHC (pyrrolidinyl); R 8a is H or -CH 3; R 8b is H or -CH 3; R 9 is C 1-4 alkyl; R 10a and R 10b are independently H or -CH 3; R 11 is H or -CH 3; R 12 is H, C 1-4 alkyl, or cyclopropyl; and R 13 is H, C 1-4 alkyl, or cyclopropyl; (a) if Q is and R 7d is -CN or -C CH=CH 2, then R 3 is H; and (b) if the dotted lines represent two single bonds, then: (i) Q is not (ii) R 11, if present, is H; and (iii) the compound of Formula is not: (i) Q is not (ii) R 11, if present, is H; and (iii) the compound of Formula is not: