Water → Carvedilol

HRID 1723894Notes

Reaction equation

HRID 1723894 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[CH:5][CH:6]=[CH:7][C:8]=1[O:9][CH2:10][CH2:11][NH:12][CH2:13][CH:14]([OH:30])[CH2:15][O:16][C:17]1[CH:18]=[CH:19][CH:20]=[C:21]2[NH:29][C:28]3[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=3[C:22]=12.O>N1C=CC=CC=1>[CH3:1][O:2][C:3]1[CH:4]=[CH:5][CH:6]=[CH:7][C:8]=1[O:9][CH2:10][CH2:11][NH:12][CH2:13][CH:14]([OH:30])[CH2:15][O:16][C:17]1[CH:18]=[CH:19][CH:20]=[C:21]2[NH:29][C:28]3[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=3[C:22]=12.[CH3:1][O:2][C:3]1[CH:4]=[CH:5][CH:6]=[CH:7][C:8]=1[O:9][CH2:10][CH2:11][NH2:12]

Participants

5

Procedure

Carvedilol (4 g) was dissolved in 39 mL pyridine by stirring at room temperature. 70 mL of water was then added dropwise until crystallization began. The solution was left at room temperature without stirring for about 80 h, then the crystals were filtered through a buchner and dried in a desiccator at room temperature (connected to air pump) until constant weight to yield Carvedilol Form III.

Workup

  1. waitThe solution was left at room temperature
  2. stirringwithout stirring for about 80 h
  3. filtrationthe crystals were filtered through a buchner
  4. customdried in a desiccator at room temperature (connected to air pump) until constant weight

Sources & evidence

ORD record
ord-ff9303aa86c54fd094b632db1b0506eb
Source dataset
uspto-grants-2009_02
Patent number
US07485663B2

Reaction notes

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