Pyrazole compositions useful as inhibitors of ERK

A compound of formula I:

• or a pharmaceutically acceptable salt thereof, wherein:
• Ht is a heterocyclic ring selected from [1,2,4]triazol-3-yl, [1,2,3]triazol-4-yl, said [1,2,4]triazol-3-yl or [1,2,3]triazol-4-yl substituted by either R3 or QR4;
• R1 is selected from R, F, Cl, N(R8)2, OR, NRCOR, NRCON(R8)2, CON(R8)2, SO2R, NRSO2R, or SO2N(R8)2;
• T is a valence bond;
• each R is independently selected from hydrogen or an optionally substituted aliphatic group having one to six carbons;
• R2 is an optionally substituted phenyl or naphthyl ring;
• R3 is selected from R, OH, OR, N(R8)2, F, Cl, or CN;
• Q is a valence bond, J, or an optionally substituted C1-6 alkylidene chain wherein up to two nonadjacent carbons of the alkylidene chain are each optionally and independently replaced by J;
• J is selected from —C(═O)—, —CO2—, —C(O)C(O)—, —NRCONR8—, —N(R)N(R8)—, —C(═O)NR8—, —NRC(═O)—, —O—, —S—, —SO—, —SO2—, —N(R)O—, —ON(R8)—, —OC(═O)N(R8)—, —N(R)COO—, —SO2N(R8)—, —N(R)SO2—, or —N(R8)—;
• R4 is selected from —R8, —R5, —NH2, —NHR5, —N(R5)2, or —NR5(CH2)yN(R5)2;
• each R5 is independently selected from R6, R7, —(CH2)yCH(R6)(R7), —(CH2)yR6, —(CH2)yCH(R6)2, —(CH2)yCH(R7)2, or —(CH2)yR7;
• y is 0-6;
• each R6 is an optionally substituted group independently selected from an aliphatic, aryl, aralkyl, aralkoxy, heteroaryl, heteroarylalkyl, heteroarylalkoxy, heterocyclyl, heterocyclylalkyl, or heterocyclylalkoxy, group;
• each R7 is independently selected from an optionally substituted aliphatic, hydroxyalkyl, alkoxyalkyl, aryloxyalkyl, or alkoxycarbonyl;
• each R8 is independently selected from R or two R8 on the same nitrogen taken together with the nitrogen optionally form a four to eight membered, saturated or unsaturated heterocyclic ring having one to three heteroatoms;
• and each substitutable ring nitrogen is independently substituted by R, NR2, COR, CO2(C1-C6 optionally substituted alkyl), SO2(C1-C6 optionally substituted alkyl), CONR2, or SO2NR2;
• provided that:
• (a) TR2 and QR4 are not the same;
• and (b) TR2 and R3 are not the same.