An Alternative Synthesis of 2-Chloro-5-Hydroxypyridine: A Key Component of the Non-Opioid Analgesic Agent ABT-594

GO–Cu7S4 catalyzed ortho-aminomethylation of phenol derivatives with N,N-dimethylbenzylamines: site-selective oxidative CDC

An efficient ortho-selective C–H aminomethylation of phenols and naphthols with N,N-dimethylbenzylamines using a GO–Cu₇S₄ nanocatalyst is reported.

Ring nitrogen-substituted non-steroidal estrogens: pyridine and pyrimidine analogs of the phenol in deoxyhexestrol experience resonance constraints on preferred ligand conformation

To develop compounds selective for estrogen receptor beta (ERbeta), we substituted hydroxypyridine and pyrimidine heteroaryl groups for the characteristic phenol ring of non-steroidal estrogens. The unexpectedly low affinity showed by some of these compounds is ascribed, in part, to a resonance-enforced conformational constraint that prevents their optimal accommodation in the ER ligand binding pocket.