The bisphosphonates of formula (III) R.sub.2 --X--(CW).sub.m1 --CR.sub.3 R.sub.4 --CH.sub.2 --CM[PO--(OR.sub.1).sub.2 ].sub.2 (III) bicyclic bisphosphonates (V), and cyclic bisphosphonates (VII) are useful as anti-arthritic agents and do not have the side effects of anti-arthritic agents which are prostaglandin synthetase inhibitors.
公式(III)中的
双膦酸盐R.sub.2 --X--(CW).sub.m1 --CR.sub.3 R.sub.4 --CH.sub.2 --CM[PO--(OR.sub.1).sub.2 ].sub.2(III),双环
双膦酸盐(V),和环状
双膦酸盐(VII)可用作抗关节炎药物,并且不具有
前列腺素合成酶
抑制剂的副作用。