Di(succinimido) carbonate → methyl 4-({[(2,5-dioxo-1-pyrrolidinyl)oxy]carbonyl}amino)-1H-indazole-1-carboxylate
Reaction equation
[NH2:1][C:2]1[CH:10]=[CH:9][CH:8]=[C:7]2[C:3]=1[CH:4]=[N:5][N:6]2[C:11]([O:13][CH3:14])=[O:12].[O:15]=[C:16]1[CH2:20][CH2:19][C:18](=[O:21])[N:17]1[O:22][C:23](ON1C(=O)CCC1=O)=[O:24]>C(#N)C>[O:15]=[C:16]1[CH2:20][CH2:19][C:18](=[O:21])[N:17]1[O:22][C:23]([NH:1][C:2]1[CH:10]=[CH:9][CH:8]=[C:7]2[C:3]=1[CH:4]=[N:5][N:6]2[C:11]([O:13][CH3:14])=[O:12])=[O:24]Participants
4
Procedure
Methyl 4-amino-1H-indazole-1-carboxylate (1.9 g, 10 mmol) and 1-({[(2,5-dioxo-1-pyrrolidinyl)oxy]carbonyl}oxy)-2,5-pyrrolidinedione (2.8 g, 11 mmol) were combined in acetonitrile (100 mL), stirred for 48 hours at ambient temperature, and filtered. The filter cake was washed with acetonitrile (10 mL) and dried under reduced pressure at ambient temperature to provide the title compound.
Workup
- filtrationfiltered
- washThe filter cake was washed with acetonitrile (10 mL)
- customdried under reduced pressure at ambient temperature
Sources & evidence
- ORD record
- ord-1036709ff8d24ddcb131c880f41056bd
- Source dataset
- uspto-grants-2005_08
- Patent number
- US06933311B2
Reaction notes
Loading…