Hydrochloric Acid → HCID 13388342, compound

HRID 894690Notes

Reaction equation

HRID 894690 reaction equation
[CH3:1][C:2]1[NH:3][C:4]([CH:36]=[O:37])=[C:5]([C:31]([O:33][CH2:34][CH3:35])=[O:32])[CH:6]([C:22]2[CH:27]=[CH:26][CH:25]=[C:24]([N+:28]([O-:30])=[O:29])[CH:23]=2)[C:7]=1[C:8]([O:10][CH2:11][CH2:12][N:13]([CH3:21])[CH2:14][C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1)=[O:9].[BH4-].[Na+].Cl>C(O)C>[CH3:1][C:2]1[NH:3][C:4]([CH2:36][OH:37])=[C:5]([C:31]([O:33][CH2:34][CH3:35])=[O:32])[CH:6]([C:22]2[CH:27]=[CH:26][CH:25]=[C:24]([N+:28]([O-:30])=[O:29])[CH:23]=2)[C:7]=1[C:8]([O:10][CH2:11][CH2:12][N:13]([CH3:21])[CH2:14][C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1)=[O:9]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 4311764Sodium borohydrideHCID 15665156HCID 15665156, compound

Product 1

HCID 13388342HCID 13388342, compoundYield 98.3%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a solution of 2-(N-methyl-N-benzylamino)ethyl 2-methyl-4-(3-nitrophenyl)-5-ethoxycarbonyl-6-formyl-1,4-dihydropyridine-3-carboxylate (1.5 g) in ethanol (15 ml) was added sodium borohydride (112 mg) under stirring and ice-cooling, and this mixture was further stirred for 20 minutes at the same temperature. The reaction mixture was adjusted with 0.1 N hydrochloric acid to pH 6 to 7 under ice-cooling, and concentrated under reduced pressure. To the residue was added ethyl acetate and water, and the aqueous layer was further washed with ethyl acetate twice. The extract obtained above and the washings were put together, washed with water, dried over magnesium sulfate, and concentrated under reduced pressure to give an oil (1.48 g) of 2-(N-methyl-N-benzylamino)ethyl 2-methyl-4-(3-nitrophenyl)-5-ethoxycarbonyl-6-hydroxymethyl-1,4-dihydropyridine-3-carboxylate.

Workup

  1. temperatureice-cooling
  2. stirringthis mixture was further stirred for 20 minutes at the same temperature
  3. temperaturecooling
  4. concentrationconcentrated under reduced pressure
  5. additionTo the residue was added ethyl acetate and water
  6. washthe aqueous layer was further washed with ethyl acetate twice
  7. customThe extract obtained above and the washings
  8. washwashed with water
  9. dry with materialdried over magnesium sulfate
  10. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-9a7666457f214505b3318afd6ead5c9c
Source dataset
uspto-grants-1981_08
Patent number
US04284634

Reaction notes

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