Hydrochloric Acid → (2E)-3-{6-[[(3R)-1-(4-benzoylbenzyl)-3-pyrrolidinyl](tert-butoxycarbonyl)amino]-3-pyridyl}acrylic acid dihydrochloride

HRID 226330Notes

Reaction equation

[C:1]([C:9]1[CH:41]=[CH:40][C:12]([CH2:13][N:14]2[CH2:18][CH2:17][C@@H:16]([N:19]([C:33]([O:35][C:36]([CH3:39])([CH3:38])[CH3:37])=[O:34])[C:20]3[N:25]=[CH:24][C:23](/[CH:26]=[CH:27]/[C:28]([O:30]CC)=[O:29])=[CH:22][CH:21]=3)[CH2:15]2)=[CH:11][CH:10]=1)(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[OH-].[Na+].O.[ClH:45]>O1CCOCC1>[ClH:45].[ClH:45].[C:1]([C:9]1[CH:10]=[CH:11][C:12]([CH2:13][N:14]2[CH2:18][CH2:17][C@@H:16]([N:19]([C:33]([O:35][C:36]([CH3:37])([CH3:39])[CH3:38])=[O:34])[C:20]3[N:25]=[CH:24][C:23](/[CH:26]=[CH:27]/[C:28]([OH:30])=[O:29])=[CH:22][CH:21]=3)[CH2:15]2)=[CH:40][CH:41]=1)(=[O:8])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

Conditions

Temperature: 60 °C

Procedure

To a solution of ethyl (2E)-3-{6-[[(3R)-1-(4-benzoylbenzyl)-3-pyrrolidinyl](tert-butoxycarbonyl)amino]-3-pyridyl}acrylate (111 mg) in dioxane (2 mL) was added 1N sodium hydroxide (0.6 mL). After stirring at 60° C. for 2 hours, the reaction mixture was added H2O(10 mL) and acidified with 1N hydrochloric acid (to pH 1). A resulting mixture was extracted with CHCl3, and the organic layer was dried over MgSO4, filtered, and evaporated in vacuo to give (2E)-3-{6-[[(3R)-1-(4-benzoylbenzyl)-3-pyrrolidinyl](tert-butoxycarbonyl)amino]-3-pyridyl}acrylic acid dihydrochloride (97 mg).

Workup

extractionA resulting mixture was extracted with CHCl3
dry with materialthe organic layer was dried over MgSO4
filtrationfiltered
customevaporated in vacuo

Sources & evidence

ORD record: ord-e67b2e2f65a84d32858be40fd3d31d1b
Source dataset: uspto-grants-2009_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07557127B2

Reaction notes

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