Acetyl chloride → 1-[3-(2-{[(1S,2S)-2-(5-methoxypyridin-2-yl)cyclopropyl]methoxy}-1,5-naphthyridin-3-yl)piperidin-1-yl]ethanone

HRID 872066Notes

Reaction equation

HRID 872066 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]([C@H:9]2[CH2:11][C@@H:10]2[CH2:12][O:13][C:14]2[C:23]([CH:24]3[CH2:29][CH2:28][CH2:27][NH:26][CH2:25]3)=[CH:22][C:21]3[C:16](=[CH:17][CH:18]=[CH:19][N:20]=3)[N:15]=2)=[N:7][CH:8]=1.[C:30](Cl)(=[O:32])[CH3:31].CCN(C(C)C)C(C)C>CN(C=O)C>[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]([C@H:9]2[CH2:11][C@@H:10]2[CH2:12][O:13][C:14]2[C:23]([CH:24]3[CH2:29][CH2:28][CH2:27][N:26]([C:30](=[O:32])[CH3:31])[CH2:25]3)=[CH:22][C:21]3[C:16](=[CH:17][CH:18]=[CH:19][N:20]=3)[N:15]=2)=[N:7][CH:8]=1

Participants

5

Reactant 3

HCID 6367Acetyl chlorideHCID 81531DiisopropylethylamineHCID 1176891582-{[(1S,2S)-2-(5-methoxypyridin-2-yl)cyclopropyl]methoxy}-3-(piperidin-3-yl)-1,5-naphthyridine

Product 1

HCID 710858851-[3-(2-{[(1S,2S)-2-(5-methoxypyridin-2-yl)cyclopropyl]methoxy}-1,5-naphthyridin-3-yl)piperidin-1-yl]ethanone

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 2-{[(1S,2S)-2-(5-methoxypyridin-2-yl)cyclopropyl]methoxy}-3-(piperidin-3-yl)-1,5-naphthyridine (RR3) (12 mg, 0.03 mmol) in DMF (0.3 mL) was added acetyl chloride (0.006 mL, 0.09 mmol) and Hunig's Base (0.015 mL, 0.09 mmol). After five minutes, the mixture was purified directly by reverse phase chromatography (Waters Sunfire Prep C18 OBD, 5-60% acetonitrile in water with 0.1% TFA modifier) to afford the title compound. 1H NMR (500 MHz, DMSO): δ 8.78 (s, 1 H), 8.13 (s, 3 H), 7.64 (s, 1 H), 7.26 (m, 2 H), 4.50 (m, 2 H), 4.26 (brs, 2 H), 3.77 (s, 3 H), 3.49-3.40 (m, 2 H), 3.08 (m, 2 H), 2.27 (m, 2 H), 2.24-2.19 (m, 1 H), 2.05 (s, 3 H), 1.80 (s, 1 H), 1.23-1.15 (m, 2 H), 1.08 (dt, J=8.7, 4.6 Hz, 1 H); HRMS m/z (M+H) 433.2228 found, 433.2234 required.

Workup

  1. customthe mixture was purified directly by reverse phase chromatography (Waters Sunfire Prep C18 OBD, 5-60% acetonitrile in water with 0.1% TFA modifier)

Sources & evidence

ORD record
ord-1c31c67c57b94f77bbd30c8a845978dc
Source dataset
uspto-grants-2015_03
Patent number
US08975261B2

Reaction notes

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