Hydrochloric Acid → N-(2-hydroxyethyl)-4-[(S)-3-[(R)-1-(naphthalen-1-yl)ethylamino]pyrrolidin-1-yl]benzamide hydrochloride

HRID 409582Notes

Reaction equation

HRID 409582 reaction equation
[Ca].[OH:2][CH2:3][CH2:4][NH:5][C:6](=[O:31])[C:7]1[CH:12]=[CH:11][C:10]([N:13]2[CH2:17][CH2:16][C@H:15]([NH:18][C@@H:19]([C:21]3[C:30]4[C:25](=[CH:26][CH:27]=[CH:28][CH:29]=4)[CH:24]=[CH:23][CH:22]=3)[CH3:20])[CH2:14]2)=[CH:9][CH:8]=1.[ClH:32]>C(Cl)Cl.O1CCOCC1>[ClH:32].[OH:2][CH2:3][CH2:4][NH:5][C:6](=[O:31])[C:7]1[CH:12]=[CH:11][C:10]([N:13]2[CH2:17][CH2:16][C@H:15]([NH:18][C@@H:19]([C:21]3[C:30]4[C:25](=[CH:26][CH:27]=[CH:28][CH:29]=4)[CH:24]=[CH:23][CH:22]=3)[CH3:20])[CH2:14]2)=[CH:9][CH:8]=1

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 5460341CalciumHCID 58973499N-(2-hydroxyethyl)-4-[(S)-3-[(R)-1-(naphthalen-1-yl)ethylamino]pyrrolidin-1-yl]benzamide

Product 1

HCID 67407335N-(2-hydroxyethyl)-4-[(S)-3-[(R)-1-(naphthalen-1-yl)ethylamino]pyrrolidin-1-yl]benzamide hydrochloride

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 312751,4-DioxaneSolvent

Procedure

To a mixed solution of 7.7 mg of 2-aminoethanol and 50 mg of 4-[(S)-3-[(R)-1-(naphthalen-1-yl)ethylamino]pyrrolidin-1-yl]benzoic acid hydrochloride (the compound obtained in Example 3.001) dissolved in 8 ml of dimethylformamide were added 22.2 mg of 1-hydroxybenzotriazole, 70 μl of triethylamine and 31.4 mg of EDC hydrochloride, and the mixture was stirred at room temperature for 16 hours. The reaction mixture was evaporated, a saturated aqueous sodium bicarbonate solution and chloroform were added to the residue, and the mixture was stirred and the liquids were separated. The organic layer was dried and concentrated, and the residue was purified by NH thin layer silica gel chromatography (chloroform:methanol=39:1) and thin layer silica gel chromatography (chloroform:methanol=9:1) to give 22.6 mg of N-(2-hydroxyethyl)-4-[(S)-3-[(R)-1-(naphthalen-1-yl)ethylamino]pyrrolidin-1-yl]benzamide. (2) To a solution of 22.6 mg of N-(2-hydroxyethyl)-4-[(S)-3-[(R)-1-(naphthalen-1-yl)ethylamino]pyrrolidin-1-yl]benzamide dissolved in 1 ml of methylene chloride was added dropwise 3 ml of a solution of 4M hydrochloric acid in dioxane, and the mixture was stirred for a while. The reaction mixture was evaporated, and, to the residue was added tert-butanol to dissolve the same, and freeze-dried to obtain 25.6 mg of N-(2-hydroxyethyl)-4-[(S)-3-[(R)-1-(naphthalen-1-yl)ethylamino]pyrrolidin-1-yl]benzamide hydrochloride (the following Table A3, Example 3.017).

Workup

  1. customThe reaction mixture was evaporated
  2. additionto the residue was added tert-butanol
  3. dissolutionto dissolve the same, and
  4. customfreeze-dried

Sources & evidence

ORD record
ord-afd9e07c966747c0af67b354b501395e
Source dataset
uspto-grants-2014_06
Patent number
US08759387B2

Reaction notes

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