Heptanoyl chloride → HCID 24968652, compound

HRID 1409636Notes

Reaction equation

HRID 1409636 reaction equation
Cl.[NH2:2][CH2:3][C:4]1[CH:13]=[CH:12][CH:11]=[C:10]2[C:5]=1[C:6](=[O:23])[N:7]([CH:15]1[CH2:20][CH2:19][C:18](=[O:21])[NH:17][C:16]1=[O:22])[C:8]([CH3:14])=[N:9]2.[C:24](Cl)(=[O:31])[CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH3:30].C(N(CC)C(C)C)(C)C>C(#N)C>[O:22]=[C:16]1[CH:15]([N:7]2[C:6](=[O:23])[C:5]3[C:10](=[CH:11][CH:12]=[CH:13][C:4]=3[CH2:3][NH:2][C:24](=[O:31])[CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH3:30])[N:9]=[C:8]2[CH3:14])[CH2:20][CH2:19][C:18](=[O:21])[NH:17]1

Participants

5

Reactant 3

HCID 17313Heptanoyl chlorideHCID 81531DiisopropylethylamineHCID 249683051015474-47-1

Product 1

HCID 24968652HCID 24968652, compoundYield 47%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

To a stirred mixture of 3-(5-aminomethyl-2-methyl-4-oxo-4H-quinazolin-3-yl)-piperidine-2,6-dione hydrogen chloride (0.49 g, 1.5 mmol) in acetonitrile (10 mL), was added heptanoyl chloride (0.34 mL, 2.2 mmol) and N,N-diisopropyl ethylamine (0.60 mL, 3.7 mmol). The mixture was stirred at room temp for 15 minutes. The solvent was evaporated, and the residue was purified by flash column chromatography (Silica gel, methanol/methylene chloride 4%/96%) to give heptanoic acid [3-(2,6-dioxo-piperidin-3-yl)-2-methyl-4-oxo-3,4-dihydro-quinazolin-5-ylmethyl]-amide as a light yellow solid (280 mg, 47% yield); HPLC, Waters Symmetry C18, 5 μm, 3.9×150 mm, 1 mL/min, 240 nm, 10/90 CH3CN/0.1% H3PO4, gradient to 95/5 in 5 min, kept for 5 min, 6.10 min (97.8%); mp, 208-210° C.; 1HNMR (DMSO-d6)0.86 (t, J=6 Hz, 3H, CH3), 1.25-2.21 (m, 11H, CH2CH2CH2CH2CH2, CHH), 2.57-2.89 (m, 6H, CHCH2, CH3), 4.68-4.84 (m, 2H, CH2NH), 5.23 (dd, J=6, 12 Hz, 1H, CH), 7.29-7.75 (m, 3H, Ar), 8.18 (t, J=6 Hz, 1H, CH2NH), 11.02 (s, 1H, NH); 13C NMR (DMSO-d6) δ 13.87, 20.77, 21.98, 23.27, 25.22, 28.31, 30.59, 31.96, 35.37, 38.68, 38.96, 39.23, 39.51, 39.79, 40.07, 40.35, 41.39, 56.47, 117.63, 124.30, 125.39, 133.78, 141.23, 148.44, 154.75, 160.95, 169.51, 172.29, 172.59. LCMS MH=413; Anal Calcd For C22H28N4O4: C, 64.06; H, 6.84; N, 13.58. Found: C, 64.05; H, 6.80; N, 13.58.

Workup

  1. customThe solvent was evaporated
  2. customthe residue was purified by flash column chromatography (Silica gel, methanol/methylene chloride 4%/96%)

Sources & evidence

ORD record
ord-0076924b57f04b939ef1eae4b60daf8e
Source dataset
uspto-grants-2014_12
Patent number
US08921385B2

Reaction notes

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