Hydrochloric Acid → HCID 86723991, compound

HRID 1475376Notes

Reaction equation

HRID 1475376 reaction equation
C[O:2][C:3]([C:5]1[CH:13]=[C:12]2[C:8]([CH2:9][CH2:10][N:11]2[C:14](=[O:30])[CH2:15][N:16]2[CH2:21][CH2:20][N:19]([C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23])[C@H:18]([CH3:29])[CH2:17]2)=[CH:7][CH:6]=1)=[O:4].[OH-].[Na+].Cl>C1COCC1.CO.O>[C:25]([O:24][C:22]([N:19]1[CH2:20][CH2:21][N:16]([CH2:15][C:14]([N:11]2[C:12]3[C:8](=[CH:7][CH:6]=[C:5]([C:3]([OH:4])=[O:2])[CH:13]=3)[CH2:9][CH2:10]2)=[O:30])[CH2:17][C@H:18]1[CH3:29])=[O:23])([CH3:28])([CH3:26])[CH3:27]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 86723990HCID 86723990, compound

Product 1

HCID 86723991HCID 86723991, compoundYield 95%

Reagents, catalysts & solvents 1

HCID 21892291Methanol tetrahydrofuran waterSolvent

Procedure

1-[2-((R)-4-tert-Butoxycarbonyl-3-methyl-piperazin-1-yl)-acetyl]-2,3-dihydro-1H-indole-6-carboxylic acid methyl ester (690 mg, 1.65 mmol) was dissolved in THF/MeOH/H2O (3.3/3.3/1.7 mL) and sodium hydroxide (331 mg, 8.27 mmol) was added. The reaction was stirred for 18 h and neutralised with 2 M hydrochloric acid (4.1 mL). The solvent was removed in vacuo and the residue azeoptroped with MeOH to dryness, to give the title compound (630 mg, 95%) as a red/pink solid. 1H NMR (Me-d3-OD): 8.76 (1H, s), 7.71 (1H, dd), 7.27 (1H, d), 4.39-4.28 (2H, m), 4.27-4.10 (1H, m), 3.83 (1H, d), 3.28-3.07 (3H, m), 2.93 (1H, d), 2.84 (1H, d), 2.33 (1H, dd), 2.26-2.08 (1H, m), 1.47 (9H, s), 1.34-1.27 (3H, m).

Workup

  1. customThe solvent was removed in vacuo

Sources & evidence

ORD record
ord-66fb152c1b6245e4996f5d2042cd9cab
Source dataset
uspto-grants-2015_04
Patent number
US09018214B2

Reaction notes

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