Diisopropylethylamine → HCID 25235868, compound

HRID 509491Notes

Reaction equation

HRID 509491 reaction equation
[ClH:1].[NH2:2][CH2:3][C:4]1[CH:5]=[C:6]2[C:11](=[CH:12][CH:13]=1)[N:10]=[C:9]([CH3:14])[N:8]([CH:15]1[CH2:20][CH2:19][C:18](=[O:21])[NH:17][C:16]1=[O:22])[C:7]2=[O:23].C(N(CC)[CH:28]([CH3:30])[CH3:29])(C)C>C(#N)C>[Cl:1][C:29]1[CH:28]=[CH:30][C:19]([C:18]([NH:2][CH2:3][C:4]2[CH:5]=[C:6]3[C:11](=[CH:12][CH:13]=2)[N:10]=[C:9]([CH3:14])[N:8]([CH:15]2[CH2:20][CH2:19][C:18](=[O:21])[NH:17][C:16]2=[O:22])[C:7]3=[O:23])=[O:21])=[CH:20][CH:15]=1

Participants

4

Reactant 2

HCID 81531DiisopropylethylamineHCID 687303673-(6-(aminomethyl)-2-methyl-4-oxoquinazolin-3(4H)-yl)piperidine-2,6-dione hydrochloride

Product 1

HCID 25235868HCID 25235868, compoundYield 84.9%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

To a stirred suspension of 3-(6-aminomethyl-2-methyl-4-oxo-4H-quinazolin-3-yl)-piperidine-2,6-dione hydrogen chloride (0.54 g, 1.6 mmol) in acetonitrile (10 mL), was added 4-dichloro-benzoyl chloride (0.31 mL, 2.4 mmol) and N,N-diisopropyl ethylamine (0.66 mL, 4.0 mmol). The mixture was stirred at room temperature for 30 minutes. The solvent was evaporated, and the residue was purified by flash column chromatography (Silica gel, methanol/methylene chloride 4%/96%) to give 4-chloro-N-[3-(2,6-dioxo-piperidin-3-yl)-2-methyl-4-oxo-3,4-dihydro-quinazolin-6-ylmethyl]-benzamide as a white solid (298 mg, 42% yield); HPLC, Waters Symmetry Cu, 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, 6.00 min (99.0%); mp, 267-269° C.; 1HNMR (DMSO-d6) δ 2.15-2.18 (m, 1H, CHH), 2.57-2.85 (m, 6H, CHCH2, CH3), 4.59 (d, J=5 Hz, 2H, CH2NH), 5.26 (dd, J=6, 11 Hz, 1H, CH), 7.54-7.95 (m, 7H, Ar), 9.24 (t, J=5 Hz, 1H, CH2NH), 11.02 (s, 1H, NH); 13C NMR (DMSO-d6) δ 20.91, 23.40, 30.60, 42.33, 56.52, 120.01, 123.89, 126.62, 128.44, 129.15, 132.84, 134.09, 136.16, 138.02, 145.83, 154.60, 160.43, 165.23, 169.45, 172.60. LCMS MH=439, 441; Anal Calcd For C22H19N4O4Cl+0.3H2O: C, 59.48; H, 4.45; N, 12.61; Cl, 7.98. Found: C, 59.32; H, 4.10; N, 12.50; Cl, 7.99.

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-da3c5f05348f48319858043362f15808
Source dataset
uspto-grants-2015_08
Patent number
US09096573B2

Reaction notes

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