1,1-Dimethylethyl 5-amino-1H-indazole-1-carboxylate → tert-butyl 5-(6-acetoxy-7-methoxy-2-(3-nitrophenyl)-quinazolin-4-ylamino)-1H-indazole-1-carboxylate

HRID 61648Notes

Reaction equation

HRID 61648 reaction equation
[C:1]([O:4][C:5]1[CH:6]=[C:7]2[C:12](=[CH:13][C:14]=1[O:15][CH3:16])[N:11]=[C:10]([C:17]1[CH:22]=[CH:21][CH:20]=[C:19]([N+:23]([O-:25])=[O:24])[CH:18]=1)[N:9]=[C:8]2Cl)(=[O:3])[CH3:2].[NH2:27][C:28]1[CH:29]=[C:30]2[C:34](=[CH:35][CH:36]=1)[N:33]([C:37]([O:39][C:40]([CH3:43])([CH3:42])[CH3:41])=[O:38])[N:32]=[CH:31]2>C(O)(C)C>[C:1]([O:4][C:5]1[CH:6]=[C:7]2[C:12](=[CH:13][C:14]=1[O:15][CH3:16])[N:11]=[C:10]([C:17]1[CH:22]=[CH:21][CH:20]=[C:19]([N+:23]([O-:25])=[O:24])[CH:18]=1)[N:9]=[C:8]2[NH:27][C:28]1[CH:29]=[C:30]2[C:34](=[CH:35][CH:36]=1)[N:33]([C:37]([O:39][C:40]([CH3:43])([CH3:42])[CH3:41])=[O:38])[N:32]=[CH:31]2)(=[O:3])[CH3:2]

Participants

4

Reactant 2

HCID 198005561,1-Dimethylethyl 5-amino-1H-indazole-1-carboxylateHCID 59361875HCID 59361875, compound

Product 1

HCID 66826043tert-butyl 5-(6-acetoxy-7-methoxy-2-(3-nitrophenyl)-quinazolin-4-ylamino)-1H-indazole-1-carboxylate

Reagents, catalysts & solvents 1

HCID 3776IsopropanolSolvent

Procedure

A mixture of 4-chloro-7-methoxy-2-(3-nitrophenyl)quinazolin-6-yl acetate (1.60 g, 4.23 mmol) and tert-butyl 5-amino-1H-indazole-1-carboxylate (1.0 g, 4.28 mmol) were refluxed in anhydrous iso-propanol (60 mL) for 5 h. The mixture was allowed to cool to RT, upon which the solid was collected via filtration and was washed with Et2O to give tert-butyl 5-(6-acetoxy-7-methoxy-2-(3-nitrophenyl)quinazolin-4-ylamino)-1H-indazole-1-carboxylate. (2.2 g, 4.23 mmol, 100%). HPLC retention time=7.75 mins.

Workup

  1. filtrationwas collected via filtration
  2. washwas washed with Et2O

Sources & evidence

ORD record
ord-cae12b704afd4d3bac020dfbbf65ec43
Source dataset
uspto-grants-2016_09
Patent number
US09440961B2

Reaction notes

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