(S)-(4-(3,4-Dichlorobenzyl)morpholin-2-YL)methanamine → n-{[(2s)-4-(3,4-Dichlorobenzyl)morpholin-2-yl]methyl}-2-[5-(4-fluorophenyl)-1,2,4oxadiazol-3-yl]acetamide

Participants

Reaction Steps

A mixture of Intermediate 38 (0.024 g), Intermediate 9 (0.025 g), and 1-methyl-2-pyrrolidinone (1 drop) was subjected was subjected to irradiation in a 600 W microwave oven on full power for 4 mins. The reaction mixture was dissolved in methanol and applied to an ion exchange cartridge (2 g Isolute SCX, pre-conditioned with methanol). Elution with methanol (3 column volumes) followed 10% 0.880 ammonia in methanol (2 column volumes) and evaporation of the first basic fraction in vacuo gave the crude product. Purification by Biotage flash column chromatography on silica gel (8 g cartridge), eluting with 100:8:1 dichloromethane/ethanol/0.880 ammonia, gave the title compound as a white solid (0.025 g). LCMS (System A) Rf 2.85 min Mass Spectrum m/z 479, 481 [MH+]

Provenance & Evidence