HCID 131718095, compound → HCID 131718094, compound

HRID 1770141Notes

Reaction equation

HRID 1770141 reaction equation
[CH2:1]([C:5]1[N:14]([CH2:15][C:16]2[CH:21]=[CH:20][C:19]([C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=3[C:28]3[N:32]([C:33]([C:46]4[CH:51]=[CH:50][CH:49]=[CH:48][CH:47]=4)([C:40]4[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=4)[C:34]4[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=4)[N:31]=[N:30][N:29]=3)=[CH:18][CH:17]=2)[C:13](=[O:52])[C:12]2[C:7](=[CH:8][CH:9]=[C:10]([N+:53]([O-])=O)[CH:11]=2)[N:6]=1)[CH2:2][CH2:3][CH3:4]>CCOC(C)=O.[Pd]>[NH2:53][C:10]1[CH:11]=[C:12]2[C:7](=[CH:8][CH:9]=1)[N:6]=[C:5]([CH2:1][CH2:2][CH2:3][CH3:4])[N:14]([CH2:15][C:16]1[CH:17]=[CH:18][C:19]([C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=3[C:28]3[N:32]([C:33]([C:34]4[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=4)([C:40]4[CH:41]=[CH:42][CH:43]=[CH:44][CH:45]=4)[C:46]4[CH:47]=[CH:48][CH:49]=[CH:50][CH:51]=4)[N:31]=[N:30][N:29]=3)=[CH:20][CH:21]=1)[C:13]2=[O:52]

Participants

4

Reactant 1

HCID 131718095HCID 131718095, compound

Product 1

HCID 131718094HCID 131718094, compoundYield 98.3%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 8857Ethyl AcetateSolvent

Procedure

A solution of 3.2 g (4.4 mmol) of 2-n-Butyl-3-[(2'-(N-triphenylmethyl-tetrazol-5-yl)-biphen-4-yl)-methyl]-6-nitro quinazolin-4(3H)-one in 100 mL of EtOAc was hydrogenated over night under atmospheric pressure in the presence of 0.5 g of 10% Pd/C. The solution was filtered through celite and the celite was washed with CH2Cl2 to remove any of the yellow coloured product. The filtrate was concentrated in vacuo to give 3.0 g of a pale yellow solid. The material was not purified further. 98% yield. 1H-NMR (CDCl3 -300 MHz): 0.89 (t, 3H, J=7.3 Hz), 1.32 (m, 2H), 1.69 (m, 2H), 2.62 (3 line m, 2H, J=7.9 Hz), 4.00 (bs, 2H), 5.29 (bs, 2H), 6.88-7.02 (m, 6H), 7.08-7.15 (m, 4H), 7.22-7.38 (m, 11H), 7.45-7.55 (m, 4H), 7.93 (dd, 1H, J=2.5, 7.0 Hz).

Workup

  1. filtrationThe solution was filtered through celite
  2. washthe celite was washed with CH2Cl2
  3. customto remove any of the yellow coloured product
  4. concentrationThe filtrate was concentrated in vacuo

Sources & evidence

ORD record
ord-e5e64fd15fc24b65bf51715dc1a6e687
Source dataset
uspto-grants-1995_01
Patent number
US05385894

Reaction notes

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