4-Acetamidopiperidine → N-(7-(4-acetamidopiperidin-1-yl)-2-methylpyrazolo[1,5-a]pyrimidin-5-yl)-2-phenylcyclopropanecarboxamide

HRID 1256397Notes

Reaction equation

HRID 1256397 reaction equation
Cl[C:2]1[N:7]2[N:8]=[C:9]([CH3:11])[CH:10]=[C:6]2[N:5]=[C:4]([NH:12][C:13]([CH:15]2[CH2:17][CH:16]2[C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=2)=[O:14])[CH:3]=1.[NH:24]1[CH2:29][CH2:28][CH:27]([NH:30][C:31](=[O:33])[CH3:32])[CH2:26][CH2:25]1>CN1C(=O)CCC1.CS(C)=O.CO>[C:31]([NH:30][CH:27]1[CH2:28][CH2:29][N:24]([C:2]2[N:7]3[N:8]=[C:9]([CH3:11])[CH:10]=[C:6]3[N:5]=[C:4]([NH:12][C:13]([CH:15]3[CH2:17][CH:16]3[C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)=[O:14])[CH:3]=2)[CH2:25][CH2:26]1)(=[O:33])[CH3:32]

Participants

6

Reactant 2

HCID 14451564-AcetamidopiperidineHCID 86652269N-(7-chloro-2-methylpyrazolo[1,5-a]pyrimidin-5-yl)-2-phenylcyclopropanecarboxamide

Product 1

HCID 67064404N-(7-(4-acetamidopiperidin-1-yl)-2-methylpyrazolo[1,5-a]pyrimidin-5-yl)-2-phenylcyclopropanecarboxamideYield 27%

Reagents, catalysts & solvents 3

HCID 679Dimethyl SulfoxideCatalystHCID 887MethanolSolventHCID 13387N-methyl-2-pyrrolidoneSolvent

Procedure

A solution of N-(7-chloro-2-methylpyrazolo[1,5-a]pyrimidin-5-yl)-2-phenylcyclopropanecarboxamide (8C, 200 mg, 0.612 mmol) and N-(piperidin-4-yl)acetamide (87 mg, 0.612 mmol) in NMP (2 mL) was stirred at 100° C. overnight. After cooling to room temperature, the mixture was diluted with a few drops of DMSO and methanol, and was then purified by preparatory HPLC (40-50% MeCN/H2O gradient+0.01% TFA). Lyophilization of the combined fractions gave the titled compound as a pink solid (71 mg, 27%). 1H NMR (DMSO-d6) δ: 10.94 (s, 1H), 7.91 (d, J=7.8 Hz, 1H), 7.08-7.38 (m, 5H), 6.07 (s, 1H), 4.28 (br. s., 2H), 3.86 (br. s., 1H), 3.08-3.24 (m, 2H), 2.38-2.46 (m, 1H), 2.35 (s, 3H), 1.85-1.95 (m, 2H), 1.82 (s, 3H), 1.45-1.64 (m, 3H), 1.36-1.43 (m, 1H). ESI-MS: m/z 433.0 (M+H)+.

Workup

  1. customwas then purified by preparatory HPLC (40-50% MeCN/H2O gradient+0.01% TFA)

Sources & evidence

ORD record
ord-a5dc3d6a241443558462cfe5ad3a7fd1
Source dataset
uspto-grants-2013_06
Patent number
US08461163B2

Reaction notes

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