Triethylamine → 4-(4-fluoro-3-(4-(2-methoxyethoxy)piperidine-1-carbonyl)benzyl)phthalazin-1(2H)-one

HRID 1091698Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1091698
[F:1][C:2]1[CH:10]=[CH:9][C:8]([CH2:11][C:12]2[C:21]3[C:16](=[CH:17][CH:18]=[CH:19][CH:20]=3)[C:15](=[O:22])[NH:14][N:13]=2)=[CH:7][C:3]=1[C:4]([OH:6])=O.Cl.[CH3:24][O:25][CH2:26][CH2:27][O:28][CH:29]1[CH2:34][CH2:33][NH:32][CH2:31][CH2:30]1.C(N(CC)CC)C.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2C=CC=CC=2N=N1>CN(C)C(=O)C.ClCCl.C(OCC)C>[F:1][C:2]1[CH:10]=[CH:9][C:8]([CH2:11][C:12]2[C:21]3[C:16](=[CH:17][CH:18]=[CH:19][CH:20]=3)[C:15](=[O:22])[NH:14][N:13]=2)=[CH:7][C:3]=1[C:4]([N:32]1[CH2:33][CH2:34][CH:29]([O:28][CH2:27][CH2:26][O:25][CH3:24])[CH2:30][CH2:31]1)=[O:6]

Komponenten

8

Edukt 4

HCID 8471TriethylamineHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 220613544-(2-Methoxyethoxy)piperidine hydrochlorideHCID 248117402-Fluoro-5-[(4-oxo-3,4-dihydrophthalazin-1-yl)methyl]benzoic acid

Produkt 1

HCID 577918204-(4-fluoro-3-(4-(2-methoxyethoxy)piperidine-1-carbonyl)benzyl)phthalazin-1(2H)-oneAusbeute 68,7 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 3283Diethyl EtherLösungsmittelHCID 6344DichloromethaneLösungsmittelHCID 31374DimethylacetamideLösungsmittel

Versuchsvorschrift

A solution of 2-fluoro-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzoic acid (1) (150 mg, 0.50 mmol) in N,N-dimethylacetamide (4 mL) was treated with 4-(2-methoxyethoxy)piperidine hydrochloride (103 mg, 0.53 mmol) and triethylamine (0.210 mL, 1.51 mmol). O-Benzotriazol-1-yl-N,N,N′,N′-tetra-methyluronium hexafluorophosphate (253 mg, 0.67 mmol) was added and the resulting solution was stirred at ambient temperature for 4.5 hours. The crude reaction mixture was filtered before being 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 and lyophilised to afford a gum, which was taken up in a small amount of diethyl ether and dichloromethane and allowed to evaporate before drying under vacuum, at 55° C., for 2 hours to afford the desired compound as a white solid (151 mg, 68.3% yield); 1H NMR (400.132 MHz, DMSO) δ 1.28-1.36 (1H, m), 1.40-1.49 (1H, m), 1.68-1.75 (1H, m), 1.82-1.90 (1H, m), 2.99-3.06 (1H, m), 3.25 (3H, s), 3.26-3.32 (2H, m), 3.44 (2H, t), 3.53-3.58 (3H, m), 3.90-3.98 (1H, m), 4.33 (2H, s), 7.21 (1H, t), 7.33-7.35 (1H, m), 7.39-7.43 (1H, m), 7.81-7.91 (2H, m), 7.97 (1H, d), 8.27 (1H, dd), 12.56 (1H, s); m/z (LC-MS, ESI+), RT=1.65 (M+H 440.6).

Aufarbeitung

  1. customThe crude reaction mixture
  2. filtrationwas filtered
  3. custombefore being purified by preparative HPLC (Waters XBridge Prep C18 OBD column, 5μ silica, 19 mm diameter, 100 mm length)
  4. additionFractions containing the desired compound
  5. customwere evaporated to dryness
  6. customto afford a gum, which
  7. customto evaporate
  8. custombefore drying under vacuum, at 55° C., for 2 hours

Quellen und Nachweise

ORD-Eintrag
ord-b522aceb24894d54b7b9e64ef8daeb20
Quelldatensatz
uspto-grants-2012_03
Patentnummer
US08129380B2

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