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Acetic Acid → 7-Butyl-5,7,13-triazatetracyclo[9.3.1.02,10.04,8]pentadeca-2(10),3,5,8-tetraene-13-carboxylic acid tert-butyl ester

HRID 10092
Notes
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Reaction equation

HRID 10092 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:18][CH:17]2[CH2:19][CH:10]([C:11]3[CH:12]=[C:13]([NH2:25])[C:14]([NH:20][CH2:21][CH2:22][CH2:23][CH3:24])=[CH:15][C:16]=32)[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[CH3:26]C(O)=O.C(OC=C(C#N)C#N)C.CO.C(Cl)Cl>C(O)C>[C:1]([O:5][C:6]([N:8]1[CH2:9][CH:10]2[CH2:19][CH:17]([C:16]3[CH:15]=[C:14]4[C:13](=[CH:12][C:11]=32)[N:25]=[CH:26][N:20]4[CH2:21][CH2:22][CH2:23][CH3:24])[CH2:18]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 671522-(Ethoxymethylene)propanedinitrileHCID 21226129Dichloromethane methanolHCID 542004584-Butylamino-5-amino-10-aza-tricyclo[6.3.1.02,7]dodeca-2(7),3,5-triene-10-carboxylic acid tert-butyl ester

Product 1

HCID 542668237-Butyl-5,7,13-triazatetracyclo[9.3.1.02,10.04,8]pentadeca-2(10),3,5,8-tetraene-13-carboxylic acid tert-butyl ester

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Conditions

Temperature
60 °C

Procedure

4-Butylamino-5-amino-10-aza-tricyclo[6.3.1.02,7]dodeca-2(7),3,5-triene-10-carboxylic acid tert-butyl ester (440 mg, 1.27 mmol) was dissolved in ethanol (20 mL) and HOAc (2 mL) and treated with ethoxymethylenemalononitrile (186 mg, 1.52 mmol). The resulting mixture was warmed to 60° C. and stirred 18 hours. The reaction was cooled, concentrated, treated with H2O and saturated aqueous Na2CO3 solution then extracted with ethyl acetate (3×50 mL) and dried (Na2SO4). After filtration and concentration, the residue was chromatographed to provide a yellow oil. (400 mg, 89%). (TLC 5% methanol/CH2Cl2 (NH3) Rf 0.70).

Workup

  1. temperatureThe reaction was cooled
  2. concentrationconcentrated
  3. additiontreated with H2O and saturated aqueous Na2CO3 solution
  4. extractionthen extracted with ethyl acetate (3×50 mL)
  5. dry with materialdried (Na2SO4)
  6. filtrationAfter filtration and concentration
  7. customthe residue was chromatographed
  8. customto provide a yellow oil

Sources & evidence

ORD record
ord-5fd698ef781248f897af3e0a916d0162
Source dataset
uspto-grants-2006_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07091372B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes