Reaktion #45069

Reaktionsgleichung

methyl 4-(3,4,6,7,8,8a-hexahydro-1H-pyrrolo[2,1-c]pyrazin-2-yl)benzoate

tert-butyl 5-amino-3-[2-(3,5-dimethoxyphenyl)ethyl]-1H-pyrazole-1-carboxylate

NaHMDS

→

title compound

Ausbeute 10.2%

4-(3,4,6,7,8,8a-Hexahydro-1H-pyrrolo[2,1-c]pyrazin-2-yl)-N-[5-[2-(3,5-dimethoxyphenyl)ethyl]-2H-pyrazol-3-yl]benzamide

Ausbeute 10.2%

Lösungsmittel

THF

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstige4-(3,4,6,7,8,8a-Hexahydro-1H-pyrrolo[2,1-c]pyrazin-2-yl)-N-[5-[2-(3,5-dimethoxyphenyl)ethyl]-2H-pyrazol-3-yl]benzamide was prepared as for Example 94
2. 2
   SonstigeThe crude product was purified by reverse phase prep
3. 3
   workup.ADDITIONcontaining 1% 0.880 ammonia
4. 4
   Sonstigeevaporated

Vorschrift

4-(3,4,6,7,8,8a-Hexahydro-1H-pyrrolo[2,1-c]pyrazin-2-yl)-N-[5-[2-(3,5-dimethoxyphenyl)ethyl]-2H-pyrazol-3-yl]benzamide was prepared as for Example 94, but starting from methyl 4-(3,4,6,7,8,8a-hexahydro-1H-pyrrolo[2,1-c]pyrazin-2-yl)benzoate (193 mg, 0.7 mmol), tert-butyl 5-amino-3-[2-(3,5-dimethoxyphenyl)ethyl]-1H-pyrazole-1-carboxylate (292 mg, 0.84 mmol) and 1M NaHMDS (1.23 ml, 1.23 mmol) in THF (5 ml). The crude product was purified by reverse phase prep. HPLC (basic) using a 33-53% gradient of acetonitrile in water, containing 1% 0.880 ammonia. The clean fractions were combined and evaporated to afford the title compound (34 mg, 10%); 1H NMR (399.9 MHz, DMSO-d6) δ 1.37-1.41 (1H, m), 1.67-1.77 (2H, m), 1.84-1.88 (1H, m), 1.99-2.06 (1H, m), 2.09 (1H, t), 2.18-2.25 (1H, m), 2.80-2.84 (1H, m), 2.87 (4H, s), 3.01-3.06 (2H, m), 3.73 (6H, s), 3.80-3.83 (1H, m), 3.96-3.98 (1H, m), 6.33 (1H, t), 6.42-6.45 (3H, m), 6.97 (2H, d), 7.90 (2H, d), 10.28 (1H, s), 12.07 (1H, s)

Quelle