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Hydrochloric Acid → 2-(3-azabicyclo[3.1.0]hexan-3-yl)-4-((3-chloro-4-methoxybenzyl)amino)-N-(pyrimidin-2-ylmethyl)pyrimidine-5-formamide hydrochloride

HRID 2200866
Notes
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Reaction equation

HRID 2200866 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([CH:26]=[CH:27][C:28]=1[O:29][CH3:30])[CH2:5][NH:6][C:7]1[C:12]([C:13]([NH:15][CH2:16][C:17]2[N:22]=[CH:21][CH:20]=[CH:19][N:18]=2)=[O:14])=[CH:11][N:10]=[C:9](S(C)=O)[N:8]=1.C(N(CC)CC)C.Cl.[CH:39]12[CH2:44][CH:43]1[CH2:42][NH:41][CH2:40]2.Cl>C1COCC1.CO>[ClH:1].[CH:39]12[CH2:44][CH:43]1[CH2:42][N:41]([C:9]1[N:8]=[C:7]([NH:6][CH2:5][C:4]3[CH:26]=[CH:27][C:28]([O:29][CH3:30])=[C:2]([Cl:1])[CH:3]=3)[C:12]([C:13]([NH:15][CH2:16][C:17]3[N:22]=[CH:21][CH:20]=[CH:19][N:18]=3)=[O:14])=[CH:11][N:10]=1)[CH2:40]2
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 8471TriethylamineHCID 223352893-Azabicyclo[3.1.0]hexane hydrochlorideHCID 86342163Avanafil Impurity K

Product 1

HCID 1183083252-(3-azabicyclo[3.1.0]hexan-3-yl)-4-((3-chloro-4-methoxybenzyl)amino)-N-(pyrimidin-2-ylmethyl)pyrimidine-5-formamide hydrochlorideYield 72.4%

Reagents, catalysts & solvents

2
HCID 887MethanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

In absolute anhydrous THF (10 mL) was dissolved 4-((3-chloro-4-methoxybenzyl)amino)-2-(methylsulfinyl)-N-(pyrimidin-2-ylmethyl)pyrimidine-5-formamide (100 mg, 0.22 mmol). Triethylamine (0.22 g, 2.2 mmol) was added dropwisely, and 3-azabicyclo[3.1.0]hexan hydrochloride salt (42 mg, 0.35 mmol) was added. The reaction mixture was heated to reflux overnight. The solvent was removed by rotary evaporation, and water was added, followed by extraction with DCM. The organic phase was dried over sodium sulfate and purified by silica gel column chromatography (DCM/methanol=20/1 to 10/1) to give a solid. The solid was dissolved in methanol (0.05 mL), and hydrochloric acid (1 mol/L) was added. The solvent was removed to give 2-(3-azabicyclo[3.1.0]hexan-3-yl)-4-((3-chloro-4-methoxybenzyl)amino)-N-(pyrimidin-2-ylmethyl)pyrimidine-5-formamide hydrochloride (40 mg, 39% yield).

Workup

  1. temperatureThe reaction mixture was heated
  2. temperatureto reflux overnight
  3. customThe solvent was removed by rotary evaporation, and water
  4. additionwas added
  5. extractionfollowed by extraction with DCM
  6. dry with materialThe organic phase was dried over sodium sulfate
  7. custompurified by silica gel column chromatography (DCM/methanol=20/1 to 10/1)
  8. customto give a solid
  9. customThe solvent was removed

Sources & evidence

ORD record
ord-e4e56d2831754b1481fcdc8987a2c0b0
Source dataset
uspto-grants-2016_06
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09359371B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes