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Synthetic route of the title compounds I. Reagents and conditions: (a) methyl chloroacetate, K2CO3, CH3CN, 65 °C; (b) K2CO3, H2O, 65 °C; (c) aqueous HCl solution (10%), rt; (d) substituted 1,3-cyclohexanediones, EDCI, DMAP, DCM, rt; (e) substituted 1,3-dimethyl-1H-pyrazol-5-ol, EDCI, DMAP, DCM, rt; (f) Et3N, acetone cyanohydrin, DCM, rt.
