The invention relates to an application of a (1-phenyl-1H-
pyrazole-3, 4, 5-triyl) tri (
phenyl ketone) derivative in preparation of a
medicine for resisting
bone resorption and inhibiting
osteoclast differentiation, and the (1-phenyl-1H-
pyrazole-3, 4, 5-triyl) tri (
phenyl ketone) derivative X-1 and X-4 inhibit formation of TRAP + mononuclear
osteoclast precursor cells, and the (1-phenyl-1H-
pyrazole-3, 4, 5-triyl) tri (
phenyl ketone) derivative X-1 and the (1-phenyl-1H-pyrazole-3, 4, 5-triyl) tri (phenyl
ketone) derivative X-4 inhibit formation of TRAP + mononuclear
osteoclast precursor cells. And the (1-phenyl-1H-pyrazole-3, 4, 5-triyl) tri (phenyl
ketone) derivatives X-2, X-3 and X-5 selectively block the further differentiation of the TRAP + osteoclast precursor cells into the mature osteoclast. The (1-phenyl-1H-pyrazole-3, 4, 5-triyl) tri (phenyl
ketone) derivative has the beneficial effects that the (1-phenyl-1H-pyrazole-3, 4, 5-triyl) tri (phenyl ketone) derivative provided by the invention can be used as a novel candidate
drug molecule of an inhibitor for resisting
bone resorption and osteoclast differentiation, and is used for developing a novel inhibitor for osteoclast differentiation.