N-[4-(4-fluorophenyl)-5-formyl-6-isopropyl-2-pyrimidinyl]-N-methylmethanesulfonamide; CAS No.: 147118-37-4; ChemShuttle s custom synthesis services deliver pyrimidine aldehydes for condensation reactions. The formyl group at position 5 enables Schiff base formation with amine nucleophiles. Our oxidation protocols prevent over-oxidation to carboxylic acids through TEMPO-mediated control. The product serves as a key electrophile in reductive amination cascades for lead diversification.