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Hydrochloric Acid → (2S)-(E)-[4-(2-carboxyethen-1-yl)thiazol-2-ylthio]-N-{[4-(3,4-dichlorobenzyl)morpholin-2-yl]methyl}acetamide

HRID 545118
Notes
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Reaction equation

HRID 545118 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([CH:25]=[CH:26][C:27]=1[Cl:28])[CH2:5][N:6]1[CH2:11][CH2:10][O:9][C@@H:8]([CH2:12][NH:13][C:14](=[O:24])[CH2:15][S:16][C:17]2[S:18][CH:19]=[C:20]([CH:22]=O)[N:21]=2)[CH2:7]1.C(O)(=O)[CH2:30][C:31]([OH:33])=[O:32].N1CCCCC1.Cl>N1C=CC=CC=1.O>[C:31](/[CH:30]=[CH:22]/[C:20]1[N:21]=[C:17]([S:16][CH2:15][C:14]([NH:13][CH2:12][C@@H:8]2[O:9][CH2:10][CH2:11][N:6]([CH2:5][C:4]3[CH:25]=[CH:26][C:27]([Cl:28])=[C:2]([Cl:1])[CH:3]=3)[CH2:7]2)=[O:24])[S:18][CH:19]=1)([OH:33])=[O:32]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 867Malonic AcidHCID 8082PiperidineHCID 86616376(2S)-N-{[4-(3,4-dichlorobenzyl)morpholin-2-yl]methyl}-(4-formylthiazol-2-ylthio)acetamide

Product 1

HCID 59009139(2S)-(E)-[4-(2-carboxyethen-1-yl)thiazol-2-ylthio]-N-{[4-(3,4-dichlorobenzyl)morpholin-2-yl]methyl}acetamide

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 1049PyridineSolvent

Conditions

Temperature
100 °C

Procedure

The resultant product (643 mg) of (70-2) was dissolved in pyridine (5 mL), malonic acid (291 mg) and piperidine (14 μL) were added, and the mixture was stirred at 100° C. for 3.5 hrs. The reaction mixture was poured into water, 1M hydrochloric acid was added to adjust to pH=4, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography using a mixed solvent of chloroform and methanol as an eluent. The solvent was evaporated from the eluent to give the title compound (618 mg) as a white amorphous solid.

Workup

  1. additionwas added
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe extract was washed with saturated brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. customthe solvent was evaporated under reduced pressure
  6. customThe obtained residue was purified by silica gel column chromatography
  7. customThe solvent was evaporated from the eluent

Sources & evidence

ORD record
ord-ca47636c2f274beab94dde1a03579a3b
Source dataset
uspto-grants-2011_05
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07935700B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes