Isoprenoid pathway inhibitors for stimulating bone growth

Abstract

Compounds of the formula wherein X in each of formulas (1) and (2) represents a substituted or unsubstituted alkylene, alkenylene, or alkynylene linker of 2-6C; Y is of the formula or a stereoisomer thereof, wherein R1 is substituted or unsubstituted alkyl; each R2 is independently H, hydroxy, alkoxy (1-6C) or lower alkyl (1-4C); R3 is H, hydroxy, or alkoxy (1-6C); or Y is of the formula wherein each n is 1, Z is N, K comprises a substituted or unsubstituted aromatic carbocyclic or heterocyclic ring system which may optionally be spaced from the linkage position shown in formula (7) by a linker of 1-2C, or in formula (7), Z may be spaced from the carbon bonded to X by ═CR6— wherein R6 is H or linear, branded or cyclic alkyl (1-6C), R5 is H or linear, branched or cyclic alkyl, and R′ represents a cation, H or a substituted or unsubstituted alkyl group of 1-6C, promote bone formation and are thus useful in treating osteoporosis, bone fracture or deficiency, primary or secondary hyperparathyroidism, periodontal disease or defect, metastatic bone disease, osteolytic bone disease, post-plastic surgery, post-prosthetic joint surgery, and post-dental implantation. Also disclosed is a method to identify additional compounds which are inhibitors of enzymes in the isoprenoid scheme especially of HMG-CoA reductase which results in prenylation of proteins and in the synthesis of steroids or of inhibitors of their production which are useful in treating bone disorders.

Dependencies are inferred from the claim text.