Hydrochloric Acid → 4-(3-ethoxy-4-hydroxy-5-nitrophenyl)-6-(4-morpholinophenyl)-5-phenyl-3,4-dihydropyrimidin-2(1H)-one

HRID 401034Notes

Reaction equation

HRID 401034 reaction equation
[O:1]1[CH2:6][CH2:5][N:4]([C:7]2[CH:12]=[CH:11][C:10]([C:13](=O)[CH2:14][C:15]3[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=3)=[CH:9][CH:8]=2)[CH2:3][CH2:2]1.[CH2:22]([O:24][C:25]1[CH:26]=[C:27]([CH:30]=[C:31]([N+:34]([O-:36])=[O:35])[C:32]=1[OH:33])[CH:28]=O)[CH3:23].[NH2:37][C:38]([NH2:40])=[O:39].Cl>CCO>[CH2:22]([O:24][C:25]1[CH:26]=[C:27]([CH:28]2[C:14]([C:15]3[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=3)=[C:13]([C:10]3[CH:11]=[CH:12][C:7]([N:4]4[CH2:5][CH2:6][O:1][CH2:2][CH2:3]4)=[CH:8][CH:9]=3)[NH:40][C:38](=[O:39])[NH:37]2)[CH:30]=[C:31]([N+:34]([O-:36])=[O:35])[C:32]=1[OH:33])[CH3:23]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 1176UreaHCID 2696961-[4-(Morpholin-4-yl)phenyl]-2-phenylethanone2×HCID 5848783-Ethoxy-4-hydroxy-5-nitrobenzaldehyde

Product 1

HCID 569616134-(3-ethoxy-4-hydroxy-5-nitrophenyl)-6-(4-morpholinophenyl)-5-phenyl-3,4-dihydropyrimidin-2(1H)-oneYield 13%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

A mixture of 1-(4-morpholinophenyl)-2-phenylethanone (Intermediate 25) (280 mg, 1.00 mmol), 3-ethoxy-4-hydroxy-5-nitrobenzaldehyde (175 mg, 0.83 mmol), urea (179 mg, 2.99 mmol), and concentrated HCl solution (0.07 mL, 0.83 mmol) in EtOH (5 mL) was refluxed for 48 h. The mixture was evaporated in vacuo, and the residue was purified by preparative HPLC to give Compound 56 (55.29 mg, yield 13%) as a solid. 1H NMR (CD3OD 300 MHz): δ 7.62 (d, J=2.1 Hz, 1H), 7.20-7.15 (m, 3H), 7.10-7.04 (m, 3H), 6.92-6.85 (m, 4H), 5.30 (s, 1H), 4.12-4.02 (m, 2H), 3.81 (t, J=4.8 Hz, 4H), 3.15 (t, J=4.8 Hz, 4H), 1.41 (t, J=6.9 Hz, 3H); MS (ESI): m/z 517.0 [M+1]+.

Workup

  1. temperaturewas refluxed for 48 h
  2. customThe mixture was evaporated in vacuo
  3. customthe residue was purified by preparative HPLC

Sources & evidence

ORD record
ord-7e06dab3789b41b4baa90af36026fa71
Source dataset
uspto-grants-2014_06
Patent number
US08741915B2

Reaction notes

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