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Hydrochloric Acid → (1S,2S)-2-{[(benzyloxy)carbonyl]amino}-1-methyl-3-oxo-3-[(3-oxopropyl)amino]propyl myristate

HRID 25707
Notes
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Reaction equation

HRID 25707 reaction equation
[C:1]([O:16][C@@H:17]([CH3:42])[C@H:18]([NH:31][C:32]([O:34][CH2:35][C:36]1[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=1)=[O:33])[C:19]([NH:21][CH2:22][CH2:23][CH:24](OCC)[O:25]CC)=[O:20])(=[O:15])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH3:14].Cl.C(=O)(O)[O-].[Na+]>O1CCCC1>[C:1]([O:16][C@@H:17]([CH3:42])[C@H:18]([NH:31][C:32]([O:34][CH2:35][C:36]1[CH:37]=[CH:38][CH:39]=[CH:40][CH:41]=1)=[O:33])[C:19](=[O:20])[NH:21][CH2:22][CH2:23][CH:24]=[O:25])(=[O:15])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH3:14]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 516892Sodium BicarbonateHCID 69752788(1S,2S)-2-{[(benzyloxy)carbonyl]amino}-3-[(3,3-diethoxypropyl)amino]-1-methyl-3-oxopropyl myristate

Product 1

HCID 86587939(1S,2S)-2-{[(benzyloxy)carbonyl]amino}-1-methyl-3-oxo-3-[(3-oxopropyl)amino]propyl myristateYield 75%

Reagents, catalysts & solvents 1

HCID 8028
Tetrahydrofuran
Solvent

Procedure

To a solution of (1S,2S)-2-{[(benzyloxy)carbonyl]amino}-3-[-(3,3-diethoxypropyl)amino]-1-methyl-3-oxopropyl myristate (1.06 g, 1.79 mmol, obtained from Reference Example 47) in anhydrous tetrahydrofuran was added 0.5 N hydrochloric acid (4.3 ml). The resulting solution was stirred at room temperature for 5 hours. The reaction mixture was brought to pH 9 with aqueous sodium bicarbonate, extracted with ethyl acetate (3×75 ml), the combined organics were washed with saturated sodium chloride, dried over magnesium sulfate, filtered and concentrated in vacuo. The residue was chromatographed (flash column, silica gel, 45% ethyl acetate in hexane) to provide (1S,2S)-2-{[(benzyloxy)carbonyl]amino}-1-methyl-3-oxo-3-[(3-oxopropyl)amino]propyl myristate (694 mg, 75%) as a white solid.

Workup

  1. extractionextracted with ethyl acetate (3×75 ml)
  2. washthe combined organics were washed with saturated sodium chloride
  3. dry with materialdried over magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue was chromatographed (flash column, silica gel, 45% ethyl acetate in hexane)

Sources & evidence

ORD record
ord-2e8aeb90799945a6988b9be021129abb
Source dataset
uspto-grants-2005_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06858591B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes