Sodium Hydroxide → (2E)-3-(6-{[(3R)-1-(4-chlorobenzoyl)-3-pyrrolidinyl]amino}-3-pyridyl)acrylic acid

HRID 226350Notes

Reaction equation

[Cl:1][C:2]1[CH:28]=[CH:27][C:5]([C:6]([N:8]2[CH2:12][CH2:11][C@@H:10]([NH:13][C:14]3[N:19]=[CH:18][C:17](/[CH:20]=[CH:21]/[C:22]([O:24]CC)=[O:23])=[CH:16][CH:15]=3)[CH2:9]2)=[O:7])=[CH:4][CH:3]=1.[OH-].[Na+]>CO.O1CCOCC1.O>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([C:6]([N:8]2[CH2:12][CH2:11][C@@H:10]([NH:13][C:14]3[N:19]=[CH:18][C:17](/[CH:20]=[CH:21]/[C:22]([OH:24])=[O:23])=[CH:16][CH:15]=3)[CH2:9]2)=[O:7])=[CH:27][CH:28]=1

Participants

Conditions

Temperature: 70 °C

Procedure

To a solution of ethyl (2E)-3-(6-{[(3R)-1-(4-chlorobenzoyl)-3-pyrrolidinyl]amino}-3-pyridyl)acrylate (2.16 g) in MeOH (30 mL) and dioxane (30 mL) was added 1N NaOH aq solution (27.1 mL). The mixture was heated at 70° C. for 1.5 hour and diluted with water (120 mL) and washed with ether. The pH value of aqueous phase was adjusted to 5.5, and the precipitate was collected by filtration and dried in vacuo to give (2E)-3-(6-{[(3R)-1-(4-chlorobenzoyl)-3-pyrrolidinyl]amino}-3-pyridyl)acrylic acid (1.58 g) as pale yellow powder.

Workup

washwashed with ether
filtrationthe precipitate was collected by filtration
customdried in vacuo

Sources & evidence

ORD record: ord-4835eab1baeb4bfab105ae40f5e3056c
Source dataset: uspto-grants-2009_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07557127B2

Reaction notes

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