Diisopropylethylamine → HCID 25235825, compound

HRID 509493Notes

Reaction equation

HRID 509493 reaction equation
Cl.[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].[F:24][C:25]([F:37])([F:36])[O:26][C:27]1[CH:35]=[CH:34][C:30]([C:31](Cl)=[O:32])=[CH:29][CH:28]=1.C(N(CC)C(C)C)(C)C>C(#N)C>[O:22]=[C:16]1[CH:15]([N:8]2[C:7](=[O:23])[C:6]3[C:11](=[CH:12][CH:13]=[C:4]([CH2:3][NH:2][C:31](=[O:32])[C:30]4[CH:34]=[CH:35][C:27]([O:26][C:25]([F:24])([F:36])[F:37])=[CH:28][CH:29]=4)[CH:5]=3)[N:10]=[C:9]2[CH3:14])[CH2:20][CH2:19][C:18](=[O:21])[NH:17]1

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 1421104-(Trifluoromethoxy)benzoyl ChlorideHCID 687303673-(6-(aminomethyl)-2-methyl-4-oxoquinazolin-3(4H)-yl)piperidine-2,6-dione hydrochloride

Product 1

HCID 25235825HCID 25235825, compoundYield 73.1%

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 (0.49 g, 1.4 mmol) in acetonitrile (10 mL), was added 4-trifluoromethoxy-benzoyl chloride (0.34 mL, 2.2 mmol) and N,N-diisopropyl ethylamine (0.63 mL, 3.6 mmol). The mixture was stirred at room temperature for one hour. The solvent was evaporated, and the residue was purified by flash column chromatography (Silica gel, methanol/methylene chloride 4%/96%) to give N-[3-(2,6-dioxo-piperidin-3-yl)-2-methyl-4-oxo-3,4-dihydro-quinazolin-6-ylmethyl]-4-trifluoromethoxy-benzamide as an off-white solid (500 mg, 71% 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, 6.40 min (99.5%); mp, 165-167° C.; 1HNMR (DMSO-d6) δ 2.15-2.20 (m, 1H, CHH), 2.56-2.88 (m, 6H, CHCH2, CH3), 4.60 (d, J=5 Hz, 2H, CH2NH), 5.26 (dd, J=6, 11 Hz, 1H, CH), 7.458-8.04 (m, 7H, Ar), 9.28 (t, J=5 Hz, 1H, CH2NH), 11.02 (s, 1H. NH); 13C NMR (DMSO-d6) δ 20.90, 23.40, 30.60, 42.35, 56.53, 119.93 (q, JC-F=257 Hz), 120.01, 120.67, 123.87, 126.62, 129.56, 133.19, 134.17, 134.07, 137.97, 145.83, 150.35, 154.61, 160.43, 165.06, 169.45, 172.59. LCMS MH=489; Anal Calcd For C22H19N4O5F3+1.1H2O: C, 54.36; H, 4.20; N, 11.02; F, 11.21. Found: C, 54.40; H, 3.89; N, 10.67; F, 11.06.

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-12f9ee4e2ba04f5babcabe763dfee1be
Source dataset
uspto-grants-2015_08
Patent number
US09096573B2

Reaction notes

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