Pyrazole CCK(1) receptor antagonists. Part 1: Solution-phase library synthesis and determination of Free-Wilson additivity.

High throughput screening revealed compound 1 as a potent antagonist of the CCK(1) receptor. Evaluation of the CCK(1) SAR in a series of these diarylpyrazole antagonists was conducted in a matrix synthesis format revealing additive (Free-Wilson) and non-additive SAR. This use of additive QSAR modeling in conjunction with combinatorial libraries represents a unique approach to the evaluation of SAR interactions between the variables of any combinatorial matrix.