DERIVATIVES OF SUBSTITUTED BENZOYLBENZENE-, BIPHENYL OR 2-OXAZOLEALKANOIC ACID OR THEIR PHARMACOLOGICALLY ACCEPTABLE SALTS, AND A METHOD OF THEIR SYNTHESIS Russian patent published in 1995 - IPC

FIELD: organic chemistry. SUBSTANCE: products: derivatives of substituted benzoyl-, biphenyl- or 2-oxazolealkanoic acid of the formula (I) A(CH₂)_nO-B where A a group of the formula (I) where X-N- or C(R³)- - or -S- at condition that when C(R³)-- Z or lower alkyl then n 1-2; B a group of the formulas II, III, IV, V where R⁴, R⁵, R⁶, R⁷, m have corresponding meanings, or their salts. Compounds of the formula (I) were synthesized by interaction of compound of the formula HO₂-B with compound of the formula A(CH₂)_n-X where X splitting off group. Synthesized compounds were used in medicine as leucotriene antagonists and lipoxygenase inhibitors. EFFECT: improved method of synthesis. 11 cl, 6 tbl