New phenyl boronic acid compounds are useful for the synthesis of drugs or treatment and/or prevention of pathological conditions

摘要

Phenyl boronic acid compounds and their salts, solvates or hydrates are new. Phenyl boronic acid compounds of formula (I) and their salts, solvates or hydrates are new. R : H, T, T1 or T4; T : 1-12C alkyl (optionally interrupted by S, O or N); T1 : 3-12C cycloalkyl; T2 : aryl; T3 : arylalkyl; T4 : heterocyclic ring; R1T, T1, T4, T2, T3, heteroaryl or 9-fluorenylmethyl; and Ra, Rb : H, 2-4C alkylene (optionally substituted by 1-4C alkyl). Independent claims are also included for: (1) a phenyl compound of formula (II); and (2) the preparation of (I). X : Cl, I or Br. [Image] [Image].