Cyclopropylamine → HCID 66582354, compound

HRID 1972576Notes

Reaction equation

CS(O[CH2:6][C@H:7]1[CH2:12][N:11]([S:13]([C:16]2[S:17][CH:18]=[CH:19][CH:20]=2)(=[O:15])=[O:14])[CH2:10][CH2:9][N:8]1[C:21]1[CH:26]=[CH:25][C:24]([C:27]([OH:33])([CH3:32])[C:28]([F:31])([F:30])[F:29])=[CH:23][CH:22]=1)(=O)=O.[CH:34]1([NH2:37])[CH2:36][CH2:35]1>CO>[CH:34]1([NH:37][CH2:6][C@H:7]2[CH2:12][N:11]([S:13]([C:16]3[S:17][CH:18]=[CH:19][CH:20]=3)(=[O:14])=[O:15])[CH2:10][CH2:9][N:8]2[C:21]2[CH:22]=[CH:23][C:24]([C:27]([OH:33])([CH3:32])[C:28]([F:30])([F:29])[F:31])=[CH:25][CH:26]=2)[CH2:36][CH2:35]1

Participants

Conditions

Temperature: 140 °C

Procedure

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.

Workup

customThe vial was sealed
temperatureAfter cooling to room temperature
concentrationthe reaction mixture was concentrated
customthe crude product was purified by column chromatography (120 g of silica, 2 to 8% 2M NH3 in MeOH/CH2Cl2)

Sources & evidence

ORD record: ord-dcf6fa12a02242b8a7a939047ab5ac43
Source dataset: uspto-grants-2013_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08431563B2

Reaction notes

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