KDM1A inhibitors for the treatment of disease

A compound of Formula V:

• or a salt thereof, wherein:
• R1 and R2 are each independently chosen from alkyl, aminoalkyl, alkylsulfonylalkyl, alkoxyalkyl, aryl, arylalkyl, cycloalkyl, cycloalkylalkyl, phenyl, biphenyl, heteroaryl, heteroarylalkyl, heterocycloalkyl, and heterocycloalkylalkyl and R1 and R2, together with the nitrogen to which they attach, form a nitrogen-containing heterocycloalkyl or heteroaryl ring, which may be optionally substituted with between 0 and 3 R6 groups;
• R4b is hydrogen;
• R6a is chosen from heteroaryl, cyano, and S(O)2N(CH3)2;
• each R6 and R6b is independently chosen from hydrogen, halogen, alkyl, alkylsulfonylaryl, alkenyl, alkynyl, cycloalkyl, haloalkyl, haloalkoxy, haloaryl, alkoxyaryl, aryl, aryloxy, aralkyl, heterocycloalkyl, heteroaryl, alkylheteroaryl, heteroarylalkyl, cyano, alkoxy, alkoxyaryl, amino, alkylamino, dialkylamino, oxo, COR7, SO2R7, NHSO2R7, NHSO2NHR7, NHCOR7, NHCONHR7, CONHR7, and CONR7R8;
• and
• R7 and R8 are independently chosen from hydrogen, aryl, and lower alkyl;
• or R7 and R8 may be taken together to form a nitrogen-containing heterocycloalkyl or heteroaryl ring, which may be optionally substituted with lower alkyl.