Hydrochloric Acid → HCID 17965904, compound

HRID 552596Notes

Reaction equation

HRID 552596 reaction equation
[Cl:1][C:2]1[CH:37]=[CH:36][CH:35]=[CH:34][C:3]=1[CH2:4][O:5][C:6]1[CH:7]=[C:8]([CH:22]=[C:23]([O:25][CH2:26][C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][C:28]=2[Cl:33])[CH:24]=1)[C:9]([NH:11][C:12]1[S:13][C:14]([C:17]([O:19]CC)=[O:18])=[CH:15][N:16]=1)=[O:10].[OH-].[Na+].Cl>C1COCC1.O>[Cl:33][C:28]1[CH:29]=[CH:30][CH:31]=[CH:32][C:27]=1[CH2:26][O:25][C:23]1[CH:22]=[C:8]([CH:7]=[C:6]([O:5][CH2:4][C:3]2[CH:34]=[CH:35][CH:36]=[CH:37][C:2]=2[Cl:1])[CH:24]=1)[C:9]([NH:11][C:12]1[S:13][C:14]([C:17]([OH:19])=[O:18])=[CH:15][N:16]=1)=[O:10]

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 59735873HCID 59735873, compound

Product 1

HCID 17965904HCID 17965904, compound

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

A solution of ethyl 2-[3,5-di-(2-chlorobenzyloxy)benzoyl]aminothiazole-5-carboxylate (158 mg, 0.28 mmol) in THF (2 ml) was treated with sodium hydroxide solution (0.57 ml of 2M, 1.4 mmol), and the reaction stirred at 40-50 deg C., until complete hydrolysis was achieved (with tlc monitoring, approximate reaction time 2 hrs). The resulting solution was cooled, diluted with water (5 ml) and acidified to pH1 using c.HCl. The precipitate thus formed was filtered off, washed (water) and dried to give the title compound as a colourless solid, 130 mg, 1H NMR δ (d6-DMSO): 5.25 (4H, s); 7.0 (1H, s); 7.4 (6H, m); 7.5 (2H, m); 7.6 (2H, m); 8.2 (1H, d).

Workup

  1. custom, until complete hydrolysis
  2. custom(with tlc monitoring, approximate reaction time 2 hrs)
  3. temperatureThe resulting solution was cooled
  4. customThe precipitate thus formed
  5. filtrationwas filtered off
  6. washwashed (water)
  7. customdried

Sources & evidence

ORD record
ord-b2f53c0c0eb34d1297adf09d1bd938c2
Source dataset
uspto-grants-2011_05
Patent number
US07951830B2

Reaction notes

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