Cyclopropylamine → HCID 66582354, compound

Participants

Reaction Conditions

Reaction Steps

A 20-mL microwave vial was charged with ((2R)-4-(thiophen-2-ylsulfonyl)-1-(4-(1,1,1-trifluoro-2-hydroxypropan-2-yl)phenyl)piperazin-2-yl)methyl methanesulfonate (1.0 g, 1.9 mmol, Intermediate B), cyclopropylamine (4.0 mL, 57 mmol, Alfa Aesar, Ward Hill, Mass.) and MeOH (10.0 mL). The vial was sealed and heated in an Initiator microwave reactor (Biotage AB, Inc., Uppsala, Sweden) at 140° C. for 30 min. After cooling to room temperature, the reaction mixture was concentrated and the crude product was purified by column chromatography (120 g of silica, 2 to 8% 2M NH3 in MeOH/CH2Cl2) to afford 2-(4-((2S)-2-((cyclopropylamino)methyl)-4-(2-thiophenylsulfonyl)-1-piperazinyl)phenyl)-1,1,1-trifluoro-2-propanol (0.613 g) as mixture of two isomers.

Provenance & Evidence