Diisopropylethylamine → (1S,2S)-2-fluoro-N-(7-(4-methylpyridin-3-yl)isoquinolin-3-yl)cyclopropanecarboxamide

HRID 468829Notes

Reaction equation

HRID 468829 reaction equation
[CH3:1][C:2]1[CH:7]=[CH:6][N:5]=[CH:4][C:3]=1[C:8]1[CH:17]=[C:16]2[C:11]([CH:12]=[C:13]([NH2:18])[N:14]=[CH:15]2)=[CH:10][CH:9]=1.[F:19][C@H:20]1[CH2:22][C@H:21]1[C:23](O)=[O:24].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C(N(CC)C(C)C)(C)C>CN(C)C=O.C(OCC)(=O)C>[F:19][C@H:20]1[CH2:22][C@H:21]1[C:23]([NH:18][C:13]1[N:14]=[CH:15][C:16]2[C:11]([CH:12]=1)=[CH:10][CH:9]=[C:8]([C:3]1[CH:4]=[N:5][CH:6]=[CH:7][C:2]=1[CH3:1])[CH:17]=2)=[O:24]

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 9793716cis-2-Fluorocyclopropanecarboxylic acidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 679741997-(4-Methylpyridin-3-yl)isoquinolin-3-amine

Product 1

HCID 71115115(1S,2S)-2-fluoro-N-(7-(4-methylpyridin-3-yl)isoquinolin-3-yl)cyclopropanecarboxamideYield 23%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
70 °C

Procedure

A mixture of 7-(4-methylpyridin-3-yl)-isoquinolin-3-amine (350 mg, 1.5 mmol), (1S,2S)-2-fluorocyclopropanecarboxylic acid (232 mg, 2.2 mmol), HATU (1.13 g, 3.0 mmol), and N,N-diisopropylethylamine (0.52 mL, 3.0 mmol) in N,N-dimethylformamide (3 mL) was heated at 70° C. for 3 hours. The cooled reaction mixture was diluted with ethyl acetate (100 mL) and washed with water (50 mL). The organic layer was separated, dried over sodium sulfate, filtered, and evaporated in vacuo to afford a residue that was purified by reverse phase HPLC (5-85% acetonitrile in water with 0.1% formic acid over 14 min) to afford the title compound as an off-white solid (15 mg, 23%). 1H NMR (400 MHz, DMSO) δ 10.97 (s, 1H), 9.20 (s, 1H), 8.53 (s, 1H), 8.50 (s, 1H), 8.49 (d, J=5.0 Hz, 1H), 8.09 (s, 1H), 7.98 (d, J=8.6 Hz, 1H), 7.76 (dd, J=8.5, 1.4 Hz, 1H), 7.40 (d, J=5.0 Hz, 1H), 4.95 (m, 1H), 2.33 (s, 3H), 2.28 (m, 1H), 1.70 (dtd, J=23.2, 6.8, 3.8 Hz, 1H), 1.25-1.14 (m, 1H). LCMS (Method E): RT=3.063 min, M+H+=322.1.

Workup

  1. customThe cooled reaction mixture
  2. washwashed with water (50 mL)
  3. customThe organic layer was separated
  4. dry with materialdried over sodium sulfate
  5. filtrationfiltered
  6. customevaporated in vacuo
  7. customto afford a residue that
  8. customwas purified by reverse phase HPLC (5-85% acetonitrile in water with 0.1% formic acid over 14 min)

Sources & evidence

ORD record
ord-b9407f7338d24f89ac612d8962cb9eb5
Source dataset
uspto-grants-2014_01
Patent number
US08623889B2

Reaction notes

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