Tris(hydroxymethyl)aminomethane → 2-methyl-1-{[2-methyl-3-(trifluoromethyl)phenyl]methyl}-6-(4-morpholinyl)-1H-benzimidazole-4-carboxylic acid 2-amino-2-(hydroxymethyl)-1,3-propanediol

HRID 1749660Notes

Reaction equation

HRID 1749660 reaction equation
[CH3:1][C:2]1[N:6]([CH2:7][C:8]2[CH:13]=[CH:12][CH:11]=[C:10]([C:14]([F:17])([F:16])[F:15])[C:9]=2[CH3:18])[C:5]2[CH:19]=[C:20]([N:26]3[CH2:31][CH2:30][O:29][CH2:28][CH2:27]3)[CH:21]=[C:22]([C:23]([OH:25])=[O:24])[C:4]=2[N:3]=1.[NH2:32][C:33]([CH2:38][OH:39])([CH2:36][OH:37])[CH2:34][OH:35]>CO>[NH2:32][C:33]([CH2:38][OH:39])([CH2:36][OH:37])[CH2:34][OH:35].[CH3:1][C:2]1[N:6]([CH2:7][C:8]2[CH:13]=[CH:12][CH:11]=[C:10]([C:14]([F:16])([F:15])[F:17])[C:9]=2[CH3:18])[C:5]2[CH:19]=[C:20]([N:26]3[CH2:27][CH2:28][O:29][CH2:30][CH2:31]3)[CH:21]=[C:22]([C:23]([OH:25])=[O:24])[C:4]=2[N:3]=1

Participants

4

Procedure

To the 2-methyl-1-{[2-methyl-3-(trifluoromethyl)phenyl]methyl}-6-(4-morpholinyl)-1H-benzimidazole-4-carboxylic acid (353.0 mg), methanol (14.0 mL) was added. The slurry was heated to 60 C and tromethamine (3.0 M solution in water, 1.0 equivalent) was added in four aliquots over 15 minutes followed by the addition of crystalline seeds of crystalline tromethamine salt from batch 1. The slurry was stirred at 60 C for 3 hours, cooled (1 C/min) to 20 C, and stirred at 20 C for 8 hours. The solids were isolated by vacuum filtration, dried at 60 C under vacuum for 5 hours. The yield of the tromethamine salt was 401.5 mg (˜88.9% yield).

Workup

  1. additionwas added in four aliquots over 15 minutes
  2. temperaturecooled (1 C/min) to 20 C
  3. stirringstirred at 20 C for 8 hours
  4. customThe solids were isolated by vacuum filtration
  5. customdried at 60 C under vacuum for 5 hours

Sources & evidence

ORD record
ord-36ae83fb6d8b451bb42e47e256fba66f
Source dataset
uspto-grants-2015_10
Patent number
US09156797B2

Reaction notes

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