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Chemical Structure| 138730-81-1 Chemical Structure| 138730-81-1

Structure of 138730-81-1

Chemical Structure| 138730-81-1

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Product Details of [ 138730-81-1 ]

CAS No. :138730-81-1
Formula : C14H16N2O4
M.W : 276.29
SMILES Code : O=C(C(N1)=CC2=C1C=CC(NC(OC(C)(C)C)=O)=C2)O
MDL No. :MFCD16658884

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Application In Synthesis of [ 138730-81-1 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 138730-81-1 ]

[ 138730-81-1 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 128293-62-9 ]
  • [ 138730-81-1 ]
  • 4-[(5-<i>tert</i>-butoxycarbonylamino-1<i>H</i>-indole-2-carbonyl)-amino]-1-methyl-1<i>H</i>-imidazole-2-carboxylic acid ethyl ester [ No CAS ]
  • 2
  • [ 22929-52-8 ]
  • [ 138730-81-1 ]
  • tert-butyl N-{1-oxo-1H-spiro[[1,3]oxazolo[3,4-a]indole-3,3'-oxolan]-7-yl}carbamate [ No CAS ]
YieldReaction ConditionsOperation in experiment
57% 5 - ((tert-Butyloxycarbonyl) amino) -1H-indole-2-carboxylic acid 1a (300 mg, 1.09 mmol) was dissolved in 15 mL of tetrahydrofuran,N, N'-carbonyldiimidazole (353 mg, 2.17 mmol) was added under an ice bath,Warmed to 25 ° C and stirred for 1.5 hours,Dihydro-3 (2H) -furanone 7a (234 mg, 2.72 mmol) was added under ice-cooling,1,8-diazabicycloundec-7-ene (430 mg, 2.82 mmol),Stirred for 1 hour,The ice bath was removed and the reaction was warmed to room temperature and stirred for 2 hours.The reaction solution was concentrated under reduced pressure,The residue was purified by a CombiFlash flash system as eluent system B,The title product 1'-carbonyl-4,5-dihydro-1'H, 2H- spiro [furan-3,3'oxazo [3,4-a] indol] -7'-aminomethyl Tert-butyl ester 7b (214 mg, white solid),Yield: 57.0percent.
 

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