Dichloromethane → (R)-(1-(4-fluorophenyl)-6-((4-fluorophenyl)sulfonyl)-4,4a,5,6,7,8-hexahydro-1H-pyrazolo[3,4-g]isoquinolin-4a-yl)(pyridin-2-yl)methanone

A solution of (R)-(1-(4-fluorophenyl)-4,4a,5,6,7,8-hexahydro-1H-pyrazolo[3,4-g]isoquinolin-4a-yl)(pyridin-2-yl)methanone in dichloromethane (2.5 ml) (2.7 mL, ˜0.2 mmol) containing disiopropylethylamine (174 μL, 1 mmol) was added to 4-fluoro-phenyl sulfonyl chloride (48 mg, 0.25 mmol) and diisopropylethylamine (100 μL, 0.57 mmol) and the mixture stirred for 1.25 hours. The reaction mixture was concentrated under reduced pressure and the residue was purified by column chromatography on silica gel (gradient: 20-30% ethyl acetate in cyclohexane) to afford (R)-(1-(4-fluorophenyl)-6-((4-fluorophenyl)sulfonyl)-4,4a,5,6,7,8-hexahydro-1H-pyrazolo[3,4-g]isoquinolin-4a-yl)(pyridin-2-yl)methanone as a white solid (72 mg). LCMS (Method D, ESI): RT 5.32 min, m+H=533.0; 1H NMR (400 MHz, CDCl3): δ 8.62-8.63 (m, 1 H); 7.85-7.86 (m, 2 H); 7.69-7.70 (m, 2 H); 7.44-7.45 (m, 3 H); 7.28 (s, 1 H); 7.14 (dt, J=12.9, 8.5 Hz, 4 H); 6.48 (d, J=2.2 Hz, 1 H); 5.51 (dd, J=12.2, 2.1 Hz, 1 H); 4.29 (d, J=16.9 Hz, 1 H); 3.82-3.86 (m, 1 H); 2.84-2.86 (m, 2 H); 2.72 (d, J=12.2 Hz, 1 H); 2.46-2.51 (m, 2 H).

1. concentrationThe reaction mixture was concentrated under reduced pressure
2. customthe residue was purified by column chromatography on silica gel (gradient: 20-30% ethyl acetate in cyclohexane)

ORD record

ord-3e9cceb26d1541d4adaeb87425d52683

Source dataset

uspto-grants-2014_10

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08859774B2