4-(Trifluoromethyl)benzoic acid → HCID 25235776, compound

HRID 453034Notes

Reaction equation

HRID 453034 reaction equation
[F:1][C:2]([F:13])([F:12])[C:3]1[CH:11]=[CH:10][C:6]([C:7]([OH:9])=O)=[CH:5][CH:4]=1.C(N1C=CN=C1)(N1C=CN=C1)=O.Cl.[NH2:27][CH2:28][C:29]1[CH:30]=[C:31]2[C:36](=[CH:37][CH:38]=1)[N:35]=[C:34]([CH3:39])[N:33]([CH:40]1[CH2:45][CH2:44][C:43](=[O:46])[NH:42][C:41]1=[O:47])[C:32]2=[O:48]>CN(C=O)C>[O:47]=[C:41]1[CH:40]([N:33]2[C:32](=[O:48])[C:31]3[C:36](=[CH:37][CH:38]=[C:29]([CH2:28][NH:27][C:7](=[O:9])[C:6]4[CH:5]=[CH:4][C:3]([C:2]([F:1])([F:13])[F:12])=[CH:11][CH:10]=4)[CH:30]=3)[N:35]=[C:34]2[CH3:39])[CH2:45][CH2:44][C:43](=[O:46])[NH:42]1

Participants

5

Reactant 3

HCID 99664-(Trifluoromethyl)benzoic acidHCID 682631,1'-CarbonyldiimidazoleHCID 687303673-(6-(aminomethyl)-2-methyl-4-oxoquinazolin-3(4H)-yl)piperidine-2,6-dione hydrochloride

Product 1

HCID 25235776HCID 25235776, compoundYield 67%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a stirred solution of 4-trifluoromethyl-benzoic acid (0.30 g, 1.6 mmol) in DMF (8 mL) in a 40° C. oil bath, was added 1,1′ carbonyldiimidazole (0.29 g, 1.8 mmol), and the mixture was stirred for one hour. Then 3-(6-aminomethyl-2-methyl-4-oxo-4H-quinazolin-3-yl)-piperidine-2,6-dione hydrogen chloride (0.54 g, 1.6 mmol) was added, and the mixture was stirred 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 N-[3-(2,6-dioxo-piperidin-3-yl)-2-methyl-4-oxo-3,4-dihydro-quinazolin-6-ylmethyl]-4-trifluoromethyl-benzamide as an off-white solid (500 mg, 67% yield); HPLC, Waters Symmetry C18, 5 μm, 3.9×150 mm, 1 mL/min, 240 nm, 10/90 CH3CN/0.1% H3PO4, grad. to 95/5 in 5 min, kept 5 min, 6.33 min (99.1%); mp, 221-223° C.; 1HNMR (DMSO-d6) 2.14-2.20 (m, 1H, CHH), 2.56-2.88 (m, 6H, CHCH2, CH3), 4.62 (d, J=5 Hz, 2H, CH2NH), 5.26 (dd, J=6, 11 Hz, 1H, CH), 7.59-8.11 (m, 7H, Ar), 9.40 (t, J=5 Hz, 1H, CH2NH), 11.02 (s, 1H, NH); 13C NMR (DMSO-d6) δ 20.90, 23.41, 30.60, 42.41, 56.53, 120.03, 123.90 (q, JC-F=253 Hz), 123.95, 125.36 (d, JC-F=3 Hz), 125.45 (d, JC-F=3 Hz), 126.65, 128.14, 131.23 (d, JC-F=31 Hz), 134.11, 137.83, 145.87, 154.64, 160.42, 165.12, 169.45, 172.59. LCMS MH=473; Anal Calcd For C23H19N4O4F3: C, 58.48; H, 4.05; N, 11.86; F, 12.06. Found: C, 58.36; H, 3.96; N, 11.75; F, 11.84.

Workup

  1. stirringthe mixture was stirred for 15 minutes
  2. customThe solvent was evaporated
  3. customthe residue was purified by flash column chromatography (Silica gel, methanol/methylene chloride 4%/96%)

Sources & evidence

ORD record
ord-8c1e7ee3fb6e485b9fa0a32633ee5f01
Source dataset
uspto-grants-2013_07
Patent number
US08492395B2

Reaction notes

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