Triethylamine → HCID 57791833, Verbindung

Temperatur

20 °C

Triethylamine (0.298 ml, 2.14 mmol) was added in one portion to 3-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoic acid (1b) (200 mg, 0.71 mmol), 4-(cyclopentyloxy)piperidine hydrochloride (121 mg, 0.71 mmol) and O-benzotriazol-1-yl-N,N,N′,N′-tetra-methyluronium hexafluorophosphate (352 mg, 0.93 mmol) in DMA (2 ml) at 20° C. under air. The resulting mixture was stirred at 20° C. for 3 days. The crude product was purified by preparative HPLC (Waters XBridge Prep C18 OBD column, 5μ silica, 19 mm diameter, 100 mm length), using decreasingly polar mixtures of water (containing 1% NH3) and MeCN as eluents. Fractions containing the desired compound were evaporated to dryness to afford the desired material as a white solid (120 mg, 39% yield); 1H NMR (400.132 MHz, DMSO) δ 1.22-1.86 (11H, m), 3.00-3.20 (2H, m), 3.25-3.43 (2H, m), 3.52-3.56 (1H, m), 3.91-4.05 (2H, m), 4.35 (2H, s), 7.20 (1H, d), 7.31 (1H, s), 7.34-7.40 (2H, m), 7.80-7.89 (2H, m), 7.96 (1H, d), 8.26 (1H, d), 12.57 (1H, s); m/z (LC-MS, ESI+), RT=2.18 (M+H 432.1)

1. customThe crude product was purified by preparative HPLC (Waters XBridge Prep C18 OBD column, 5μ silica, 19 mm diameter, 100 mm length)
2. additionFractions containing the desired compound
3. customwere evaporated to dryness

ORD-Eintrag

ord-932a18cad1c64daeb5c53af6354c703d

Quelldatensatz

uspto-grants-2012_03

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US08129380B2