Piperazine → (3aR,6aR)-5-Methyl-1-(4-piperazin-1-yl-phenyl)-octahydro-pyrrolo[3,4-b]pyrrole

Temperatur

140 °C

The product of Example 72B (200 mg, 0.71 mmole), piperazine (200 mg, 2.33 mmole), tris(dibenzylideneacetone)dipalladium (20 mg, 0.022 mmole), (R)-(+)-2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (28 mg, 0.045 mmole), sodium tert-butoxide (140 mg, 1.46 mmole) and 7 ml of toluene were mixed under N2 in a Emrys process vial. The vial was sealed heated in the microwave for 15 minutes at 140° C. using the Emrys Creator. The mixture was diluted with water and extracted with dichloromethane (4×). The combined organic layers were washed with brine, dried over sodium sulfate, filtered, and concentrated under reduced pressure to give the crude product which was purified by column chromatography (10% methanol and 1% ammonium hydroxide in dichloromethane) to provide the title compound. 1H NMR (300 MHz, CDCl3) δ ppm 6.84-6.94 (m, 2H) 6.53-6.60 (m, 2H) 4.00-4.07 (m, 1H) 3.44-3.51(m, 1H) 3.11-3.20 (m, 1H) 2.99-3.09 (m, 9H) 2.88-2.96 (m, 1H) 2.68 (dd, J=9.66, 2.54 Hz, 1H) 2.48-2.59 (m, 2H), 2.31(s, 3H) 2.09-2.19 (m, 1H) 1.89 (m, 1H). MS-(M+H)+=287.

1. customThe vial was sealed
2. extractionextracted with dichloromethane (4×)
3. washThe combined organic layers were washed with brine
4. dry with materialdried over sodium sulfate
5. filtrationfiltered
6. concentrationconcentrated under reduced pressure
7. customto give the crude product which
8. customwas purified by column chromatography (10% methanol and 1% ammonium hydroxide in dichloromethane)

ORD-Eintrag

ord-5096d94f2d7c4e03973ee5d92679950c

Quelldatensatz

uspto-grants-2010_06

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US07728031B2