Hydrochloric Acid → HCID 178457660, compound

HRID 480482Notes

Reaction equation

HRID 480482 reaction equation
[OH:1][C:2]([C:30]1[CH:31]=[C:32]2[C:37](=[CH:38][CH:39]=1)[CH:36]=[C:35]([C:40](OC)=[O:41])[CH:34]=[CH:33]2)([C:6]1[N:7]=[CH:8][N:9](C(C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[CH:10]=1)[CH:3]([CH3:5])[CH3:4].[OH-].[Na+].Cl.O[C:48](C1C=C2C(=CC=1)C=C(C(O)=O)C=C2)([C:52]1[N:53]=CN(C(C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[CH:56]=1)C(C)C.C(N)(C)C.ON1C2C=CC=CC=2N=N1.Cl.CN(C)CCCN=C=NCC.C(N(C(C)C)CC)(C)C>C1COCC1.O.CO>[OH:1][C:2]([C:30]1[CH:31]=[C:32]2[C:37](=[CH:38][CH:39]=1)[CH:36]=[C:35]([C:40]([NH:53][CH:52]([CH3:56])[CH3:48])=[O:41])[CH:34]=[CH:33]2)([C:6]1[N:7]=[CH:8][NH:9][CH:10]=1)[CH:3]([CH3:4])[CH3:5]

Participants

12

Reactant 8

HCID 313Hydrochloric AcidHCID 6363IsopropylamineHCID 14798Sodium HydroxideHCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 187691016-(1-hydroxy-2-methyl-1-(1-trityl-1H-imidazol-4-yl)propyl)-2-naphthoic acidHCID 22285069methyl 6-(1-hydroxy-2-methyl-1-(1-trityl-1H-imidazol-4-yl)propyl)-2-naphthoate

Product 1

HCID 178457660HCID 178457660, compound

Reagents, catalysts & solvents 3

HCID 887MethanolSolventHCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of methyl 6-(1-hydroxy-2-methyl-1-(1-trityl-1H-imidazol-4-yl)propyl)-2-naphthoate (16.4 g) in THF (160 mL) was added methanol (35 mL) and 4N-NaOH (35 mL) at 60° C. The mixture was stirred for 2 h, neutralized with conc.HCl. The mixture was concentrated, diluted with water and extracted with ethyl acetate. The extract was concentrated to give crude mixture of 6-(1-hydroxy-2-methyl-1-(1-trityl-1H-imidazol-4-yl)propyl)-2-naphthoic acid. To a solution of the crude mixture was added isopropylamine (3.95 mL), 1-hydroxybenzotriazole (5.33 g), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (6.67 g) and diisopropylethylamine (6.0 mL) under ice cooling. The mixture was stirred at room temperature for 14 h, diluted with water and extracted with ethyl acetate. The extract was washed with brine, concentrated. The residue was crystallized from ethyl acetate to give the titled compound (16.7 g) as a colorless powder.

Workup

  1. concentrationThe mixture was concentrated
  2. additiondiluted with water
  3. extractionextracted with ethyl acetate
  4. concentrationThe extract was concentrated
  5. customto give crude
  6. stirringThe mixture was stirred at room temperature for 14 h
  7. extractionextracted with ethyl acetate
  8. washThe extract was washed with brine
  9. concentrationconcentrated
  10. customThe residue was crystallized from ethyl acetate

Sources & evidence

ORD record
ord-f4e94f0c83bd4b1b9571d447842c8c44
Source dataset
uspto-grants-2003_11
Patent number
US06649643B1

Reaction notes

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