Hydrochloric Acid → ((2,3-dihydro(1,4)dioxino(2,3-c) pyridin-7-ylmethyl)(1-(2-(7-methoxy-2-oxo-1,5-naphthyridin-1(2H)-yl)ethyl)piperidin-4-yl)amino)acetic acid

HRID 385654Notes

Reaction equation

HRID 385654 reaction equation
[O:1]1[C:10]2[CH:9]=[C:8]([CH2:11][N:12]([CH2:34][C:35]([O:37]CC)=[O:36])[CH:13]3[CH2:18][CH2:17][N:16]([CH2:19][CH2:20][N:21]4[C:30]5[C:25](=[N:26][CH:27]=[C:28]([O:31][CH3:32])[CH:29]=5)[CH:24]=[CH:23][C:22]4=[O:33])[CH2:15][CH2:14]3)[N:7]=[CH:6][C:5]=2[O:4][CH2:3][CH2:2]1.[OH-].[Na+].Cl>CO.O1CCCC1>[O:1]1[C:10]2[CH:9]=[C:8]([CH2:11][N:12]([CH2:34][C:35]([OH:37])=[O:36])[CH:13]3[CH2:18][CH2:17][N:16]([CH2:19][CH2:20][N:21]4[C:30]5[C:25](=[N:26][CH:27]=[C:28]([O:31][CH3:32])[CH:29]=5)[CH:24]=[CH:23][C:22]4=[O:33])[CH2:15][CH2:14]3)[N:7]=[CH:6][C:5]=2[O:4][CH2:3][CH2:2]1

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 57815482ethyl((2,3-dihydro(1,4)dioxino(2,3-c)pyridin-7-ylmethyl)(1-(2-(7-methoxy-2-oxo-1,5-naphthyridin-1(2H)-yl)ethyl)piperidin-4-yl)amino)acetate

Product 1

HCID 68928989((2,3-dihydro(1,4)dioxino(2,3-c) pyridin-7-ylmethyl)(1-(2-(7-methoxy-2-oxo-1,5-naphthyridin-1(2H)-yl)ethyl)piperidin-4-yl)amino)acetic acidYield 63.3%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

A solution of 90 mg of ethyl ((2,3-dihydro(1,4)dioxino(2,3-c)pyridin-7-ylmethyl)(1-(2-(7-methoxy-2-oxo-1,5-naphthyridin-1(2H)-yl)ethyl)piperidin-4-yl)amino)acetate in 0.2 mL of methanol and 1 mL of tetrahydrofuran, 0.2 mL of a 10% aqueous sodium hydroxide solution was added, and the mixture was stirred at room temperature for 2 hours. The reaction mixture was added with a 1 mol/L aqueous hydrochloric acid solution and neutralized, and the solvent was distilled off under reduced pressure. The resultant residue was purified by a resin; HP-20, made by Mitsubishi Chemical Corporation and an eluent of acetone to obtain 54 mg of ((2,3-dihydro(1,4)dioxino(2,3-c) pyridin-7-ylmethyl)(1-(2-(7-methoxy-2-oxo-1,5-naphthyridin-1(2H)-yl)ethyl)piperidin-4-yl)amino)acetic acid as a light yellow solid.

Workup

  1. distillationthe solvent was distilled off under reduced pressure
  2. customThe resultant residue was purified by a resin

Sources & evidence

ORD record
ord-4f3c56a395f74f498243ad633040f413
Source dataset
uspto-grants-2013_02
Patent number
US08367831B2

Reaction notes

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