Hydrochloric Acid → 6-Acetyl-8-cyclopentyl-5-methyl-2-((5-(4-methylpiperazin-1-yl)pyridin-2-yl)amino)-8H-pyrido(2,3-d)pyrimidin-7-one

HRID 1271974Notes

Reaction equation

HRID 1271974 reaction equation
[CH:1]1([N:6]2[C:11]3[N:12]=[C:13]([NH:16][C:17]4[CH:22]=[CH:21][C:20]([N:23]5[CH2:28][CH2:27][N:26]([CH3:29])[CH2:25][CH2:24]5)=[CH:19][N:18]=4)[N:14]=[CH:15][C:10]=3[C:9]([CH3:30])=[C:8]([C:31]([O:33]CC)=[CH2:32])[C:7]2=[O:36])[CH2:5][CH2:4][CH2:3][CH2:2]1.Cl>C(Cl)(Cl)Cl>[C:31]([C:8]1[C:7](=[O:36])[N:6]([CH:1]2[CH2:5][CH2:4][CH2:3][CH2:2]2)[C:11]2[N:12]=[C:13]([NH:16][C:17]3[CH:22]=[CH:21][C:20]([N:23]4[CH2:24][CH2:25][N:26]([CH3:29])[CH2:27][CH2:28]4)=[CH:19][N:18]=3)[N:14]=[CH:15][C:10]=2[C:9]=1[CH3:30])(=[O:33])[CH3:32]

Participants

4

Reactant 2

HCID 313Hydrochloric AcidHCID 102890078-cyclopentyl-6-(1-ethoxy-vinyl)-5-methyl-2-[5-(4-methyl-piperazin-1-yl)-pyridin-2-ylamino]-8H-pyrido[2,3-d]pyrimidin-7-one

Product 1

HCID 53302986-Acetyl-8-cyclopentyl-5-methyl-2-((5-(4-methylpiperazin-1-yl)pyridin-2-yl)amino)-8H-pyrido(2,3-d)pyrimidin-7-oneYield 107.9%

Reagents, catalysts & solvents 1

HCID 6212ChloroformSolvent

Procedure

To a solution of 8-cyclopentyl-6-(1-ethoxy-vinyl)-5-methyl-2-[5-(4-methyl-piperazin-1-yl)-pyridin-2-ylamino]-8H-pyrido[2,3-d]pyrimidin-7-one (237 mg, 0.48 mmol) in chloroform (5 ml) was added hydrogen chloride (2 M ethereal solution, 2.0 ml, 4.0 mmol). The reaction mixture was stirred at RT for 12 h. The solvents were evaporated and the residue was dissolved in ethanol. The ethanol was evaporated to give 6-acetyl-8-cyclopentyl-5-methyl-2-[5-(4-methyl-piperazin-1-yl)-pyridin-2-ylamino]-8H-pyrido[2,3-d]pyrimidin-7-one (239 mg mmol). MS (APCI+) 462 (M+1, 100); 1H NMR δ (400 MHz, DMSOd6) 10.83 (m, 2H), 9.00 (s, 1H), 8.1 (m, 1H), 7.88–7.82 (m, 2H), 5.89–5.80 (m, 1H), 3.88–3.85 (m, 2H), 3.23–3.11 (m, 4H), 2.83–2.82 (m, 3H), 2.43 (s, 3H), 2.34 (s, 3H), 2.23–2.11 (m, 2H), 1.93 (br, 2H), 1.81–1.77 (m, 2H), 1.60–1.59 (m, 2H); Anal. Calc'd for C25H31N7O2, 2.70 HCl 1.05 C2H5OH: C, 53.50; H, 6.63; N, 16.12. Found: C, 53.45; H, 6.47; N, 15.85.

Workup

  1. customThe solvents were evaporated
  2. dissolutionthe residue was dissolved in ethanol
  3. customThe ethanol was evaporated

Sources & evidence

ORD record
ord-7d4dac0796734427b738e12c58416c90
Source dataset
uspto-grants-2007_04
Patent number
US07208489B2

Reaction notes

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