Hydrochloric Acid → N-[4-(5-carboxypentylcarbamoyl)-cyclohexylmethyl]-2-(methylcarbamoyl)-ethylthiosuccinimide

HRID 260221

Reaction equation

HRID 260221 reaction equation
[CH3:1][NH:2][C:3](=[O:9])[CH2:4][CH2:5][C:6](=[S:8])C.[OH-].[K+].Cl.[N+]([C:16]1[CH:24]=[CH:23][CH:22]=[CH:21][C:17]=1[C:18]([OH:20])=O)([S-])=S.C1C(SSC2C=CC([N+]([O-])=O)=C(C(O)=O)C=2)=CC(C(O)=O)=C([N+]([O-])=O)C=1.[CH2:51]1[CH:56]([CH2:57][N:58]2C(=O)C=CC2=O)CC[CH:53]([C:65]([O:67]N2C(=O)CCC2=O)=[O:66])[CH2:52]1.C([O-])(=O)CCCCC.[CH3:83][NH:84][C:85](=[O:89])[CH2:86][CH2:87]S>CO.P([O-])([O-])([O-])=O.[K+].[K+].[K+]>[C:65]([CH2:53][CH2:52][CH2:51][CH2:56][CH2:57][NH:58][C:18]([CH:17]1[CH2:16][CH2:24][CH:23]([CH2:1][N:2]2[C:3](=[O:9])[CH2:4][CH:5]([CH2:87][CH2:86][C:85](=[O:89])[NH:84][CH3:83])[C:6]2=[S:8])[CH2:22][CH2:21]1)=[O:20])([OH:67])=[O:66]

Participants

10

Reactant 7

HCID 313Hydrochloric AcidHCID 62545,5'-Dithiobis(2-nitrobenzoic Acid)HCID 14797Potassium HydroxideHCID 6429063-Mercapto-N-methylpropanamideHCID 21865436(2-Carboxyphenyl)-sulfanylidene-sulfidoazaniumHCID 54417257N-methyl-(3-thioacetyl)propionamideHCID 131719433SMCC caproate

Product 1

HCID 88051188N-[4-(5-carboxypentylcarbamoyl)-cyclohexylmethyl]-2-(methylcarbamoyl)-ethylthiosuccinimide

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 62657Potassium Phosphate, TribasicSolvent2×

Procedure

The thiol ester of N-methyl-(3-thioacetyl)-propionamide (4.6 mg, 3.1×10-5 mol, see Example 3) was hydrolyzed by the addition of 0.62 ml of 0.12M KOH in 80% methanol. After 10 min, 0.3 ml of 0.5M potassium phosphate, pH 7 was added to the thiol compound and the pH adjusted to 7.5 with 1N hydrochloric acid. The thiol concentration was 34 mM (determined by reaction with dithionitrobenzoic acid, DTNB). SMCC-caproate (8.7 mg, 2.5×10-5 mol) was dissolved in 0.4 ml of 0.5M potassium phosphate, pH 7.0, and the N-methyl-(3-mercapto)propionamide solution (0.742 ml, 2.5×10-5 mol) added. The solution was gassed with argon and the tube sealed. After 12 hr at room temperature, no thiol remained and the solvent was removed in vacuo. The residue was dissolved in 0.117 ml water to make a 213 mM solution of the desired compound (see FIG. 1D).

Workup

  1. customthe tube sealed
  2. waitAfter 12 hr at room temperature
  3. customthe solvent was removed in vacuo
  4. dissolutionThe residue was dissolved in 0.117 ml water

Sources & evidence

ORD record
ord-84a161067fa441ecbd903aa4c6b6a1a5
Source dataset
uspto-grants-1996_06
Patent number
US05525524

Linked notes

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