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Hydrochloric Acid → 4-(3-amino-6-((1R,3R,4R)-3-fluoro-4-hydroxycyclohexyl)pyrazin-2-yl)-2-fluorobenzoic acid

HRID 596023
Notes
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Reaction equation

HRID 596023 reaction equation
[NH2:1][C:2]1[C:3]([C:16]2[CH:28]=[CH:27][C:19]([C:20]([O:22]C(C)(C)C)=[O:21])=[C:18]([F:29])[CH:17]=2)=[N:4][C:5]([C@@H:8]2[CH2:13][CH2:12][C@@H:11]([OH:14])[C@H:10]([F:15])[CH2:9]2)=[CH:6][N:7]=1.Cl.O1CCOCC1>C(Cl)Cl>[NH2:1][C:2]1[C:3]([C:16]2[CH:28]=[CH:27][C:19]([C:20]([OH:22])=[O:21])=[C:18]([F:29])[CH:17]=2)=[N:4][C:5]([C@@H:8]2[CH2:13][CH2:12][C@@H:11]([OH:14])[C@H:10]([F:15])[CH2:9]2)=[CH:6][N:7]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 312751,4-DioxaneHCID 118045246tert-butyl 4-(3-amino-6-((1R,3R,4R)-3-fluoro-4-hydroxycyclohexyl)pyrazin-2-yl)-2-fluorobenzoate

Product 1

HCID 1180458424-(3-amino-6-((1R,3R,4R)-3-fluoro-4-hydroxycyclohexyl)pyrazin-2-yl)-2-fluorobenzoic acid

Reagents, catalysts & solvents 1

HCID 6344
Dichloromethane
Solvent

Procedure

To a solution of tert-butyl 4-(3-amino-6-((1R,3R,4R)-3-fluoro-4-hydroxycyclohexyl)pyrazin-2-yl)-2-fluorobenzoate (Scheme 84: 365 mg, 0.9 mmol) in DCM (2 mL) was added 4 M HCl in dioxane (8 mL, 32.0 mmol). The reaction mixture was stirred for 3 days at room temperature. After the volatile materials were evaporated in vacuo to yield 4-(3-amino-6-((1R,3R,4R)-3-fluoro-4-hydroxycyclohexyl)pyrazin-2-yl)-2-fluorobenzoic acid, which was used for the next step without further purification. LCMS (m/z): 350.3 (MH+), 0.48 min.

Workup

  1. customAfter the volatile materials were evaporated in vacuo

Sources & evidence

ORD record
ord-b6d3245ad194440296c184eb43bf2922
Source dataset
uspto-grants-2016_01
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09242996B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes