Pyridine → HCID 19607958, compound

HRID 1291639Notes

Reaction equation

HRID 1291639 reaction equation
[OH:1][CH:2]1[C:8]2[CH:9]=[CH:10][CH:11]=[CH:12][C:7]=2[N:6]([C:13](=[O:30])[C:14]2[CH:19]=[CH:18][C:17]([NH:20][C:21](=[O:29])[C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=3[CH3:28])=[CH:16][CH:15]=2)[CH2:5][CH2:4][CH2:3]1.[C:31](OC(=O)C)(=[O:33])[CH3:32].N1C=CC=CC=1>O>[C:31]([O:1][CH:2]1[C:8]2[CH:9]=[CH:10][CH:11]=[CH:12][C:7]=2[N:6]([C:13](=[O:30])[C:14]2[CH:19]=[CH:18][C:17]([NH:20][C:21](=[O:29])[C:22]3[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=3[CH3:28])=[CH:16][CH:15]=2)[CH2:5][CH2:4][CH2:3]1)(=[O:33])[CH3:32]

Participants

5

Reactant 3

HCID 1049PyridineHCID 7918Acetic AnhydrideHCID 10715974HCID 10715974, compound

Product 1

HCID 19607958HCID 19607958, compound

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To 5-hydroxy-1-[4-(2-methylbenzoylamino)benzoyl]-2,3,4,5-tetrahydro-1H-benzazepine (0.58 g) are added acetic anhydride (8.0 ml) and pyridine (2.0 ml). The mixture is stirred at room temperature for 1 hour. Water is added to the reaction mixture and the precipitated crystal is collected by filtration, and recrystallized from ethyl acetate/n-hexane to give 5-acetyloxy-1-[4-(2-methylbenzoylamino)benzoyl]-2,3,4,5-tetrahydro-1H-benzazepine (0.56 g) as white powder, m.p. 193°-194° C.

Workup

  1. filtrationthe precipitated crystal is collected by filtration
  2. customrecrystallized from ethyl acetate/n-hexane

Sources & evidence

ORD record
ord-93f3b9359e834d3dacb12d1d204bab57
Source dataset
uspto-grants-1998_05
Patent number
US05753677

Reaction notes

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