Synthesis of Soai Type 2-Arylpyrimidine-5-carbaldehydes through Desulfurative Cross-Coupling with Arylboronic Acids
作者:Oleg V. Maltsev、Rodger Rausch、Zheng-Jun Quan、Lukas Hintermann
DOI:10.1002/ejoc.201403133
日期:2014.11
A two-step synthesis of 2-arylpyrimidine-5-carbaldehydes, which are of relevance as substrates for Soai's asymmetric autocatalysis, was realized by exploiting a hidden threefold symmetry in the target core structure. Condensation of Arnold's C3-symmetric vinamidinium cation with S-methylisothiouronium sulfate provides 2-methylsulfanyl-pyrimidine-5-carbaldehyde; introduction of aryl groups at C-2 of
Described herein are compounds that are EP2 antagonists, methods of making such compounds, pharmaceutical compositions and medicaments comprising such compounds, and methods of using such compounds in the treatment of diseases or conditionsassociated with EP2 activity.