Ethanamine, 2,2,2-trifluoro- → HCID 86722545, compound

HRID 1502853Notes

Reaction equation

HRID 1502853 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([CH:10]([C:28]([F:31])([F:30])[F:29])/[CH:11]=[CH:12]/[C:13]2[CH:14]=[C:15]3[C:20](=[CH:21][CH:22]=2)[C:19](=[O:23])[N:18]([CH2:24][C:25]([OH:27])=O)[N:17]=[CH:16]3)[CH:5]=[C:6]([Cl:9])[C:7]=1[F:8].[F:32][C:33]([F:37])([F:36])[CH2:34][NH2:35].C1CN([P+](ON2N=NC3C=CC=CC2=3)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>C(Cl)Cl>[Cl:1][C:2]1[CH:3]=[C:4]([CH:10]([C:28]([F:29])([F:31])[F:30])/[CH:11]=[CH:12]/[C:13]2[CH:14]=[C:15]3[C:20](=[CH:21][CH:22]=2)[C:19](=[O:23])[N:18]([CH2:24][C:25]([NH:35][CH2:34][C:33]([F:37])([F:36])[F:32])=[O:27])[N:17]=[CH:16]3)[CH:5]=[C:6]([Cl:9])[C:7]=1[F:8]

Participants

6

Reactant 4

HCID 9773Ethanamine, 2,2,2-trifluoro-HCID 81531DiisopropylethylamineHCID 2724699PyBOPHCID 86675175HCID 86675175, compound

Product 1

HCID 86722545HCID 86722545, compoundYield 63.8%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a stirred solution of (E)-2-(6-(3-(3,5-dichloro-4-fluorophenyl)-4,4,4-trifluorobut-1-enyl)-1-oxophthalazin-2(1H)-yl)acetic acid (0.15 g, 0.31 mmol) in CH2Cl2 (20.0 ml) was added 2,2,2-trifluoroethanamine (0.03 g, 0.31 mmol), PyBOP (0.17 g, 0.34 mmol) and DIPEA (0.15 ml, 0.93 mmol) at ambient temperature, and the reaction was stirred for 18 h. The reaction mixture was diluted with CH2Cl2 and washed with 3N HCl (2×20 mL), NaHCO3 (2×20 mL) and brine solution (2×). The separated CH2Cl2 layer was dried over anhydrous Na2SO4 and concentrated under reduced pressure to afford the crude compound. The crude compound was purified by column chromatography (SiO2, 100-200 mesh; 20-25% ethyl acetate/petroleum ether) to afford the title compound as a brown solid (0.11 g): mp 172-175° C.; 1H NMR (400 MHz, CDCl3) δ 8.83 (t, J=6.6 Hz, 1H), 8.42 (t, J=14.7 Hz, 1H), 8.22 (d, J=8.1 Hz, 1H), 8.13 (t, J=6.3 Hz, 1H), 7.98-7.86 (m, 2H), 7.16-7.07 (m, 1H), 7.01-6.93 (m, 1H), 4.96-4.81 (m, 3H), 4.00-3.88 (m, 2H); ESIMS m/z 554.0 ([M−H]−).

Workup

  1. washwashed with 3N HCl (2×20 mL), NaHCO3 (2×20 mL) and brine solution (2×)
  2. dry with materialThe separated CH2Cl2 layer was dried over anhydrous Na2SO4
  3. concentrationconcentrated under reduced pressure
  4. customto afford the crude compound
  5. customThe crude compound was purified by column chromatography (SiO2, 100-200 mesh; 20-25% ethyl acetate/petroleum ether)

Sources & evidence

ORD record
ord-bf77589e6496449fa9da9e9600b92605
Source dataset
uspto-grants-2015_12
Patent number
US09211280B2

Reaction notes

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