Reaction equation
CS([C:4]1[N:9]=[C:8]([C:10]2[N:14]3[CH:15]=[CH:16][CH:17]=[C:18]([C:19]([OH:22])([CH3:21])[CH3:20])[C:13]3=[N:12][CH:11]=2)[CH:7]=[CH:6][N:5]=1)=O.[CH2:23]([O:25][C:26]([CH:28]1[CH2:33][CH2:32][CH:31]([NH2:34])[CH2:30][CH2:29]1)=[O:27])[CH3:24]>CN1C(=O)CCC1.O>[CH2:23]([O:25][C:26]([CH:28]1[CH2:33][CH2:32][CH:31]([NH:34][C:4]2[N:9]=[C:8]([C:10]3[N:14]4[CH:15]=[CH:16][CH:17]=[C:18]([C:19]([OH:22])([CH3:21])[CH3:20])[C:13]4=[N:12][CH:11]=3)[CH:7]=[CH:6][N:5]=2)[CH2:30][CH2:29]1)=[O:27])[CH3:24]Participants
5
Conditions
- Temperature
- 100 °C
Procedure
A mixture of 2-[3-(2-methylsulfinyl-pyrimidin-4-yl)-imidazo[1,2-a]pyridin-8-yl]-propan-2-ol (0.19 g), 4-amino-cyclohexanecarboxylic acid ethyl ester (0.31 g) in NMP (2 mL) was stirred at 100° C. for 3 h. The reaction mixture was cooled to RT, and diluted with water. The resulting solid was filtered and dried, then purified by ISCO using 100% DCM to 10% MeOH/DCM. Fractions were collected, concentrated, and titurated with EtOAc/hexane. The resulting solid was filtered and dried at 50° C. under vacuum overnight to provide 4-{4-[8-(1-hydroxy-1-methyl-ethyl)-imidazo[1,2-a]pyridin-3-yl]-pyrimidin-2-ylamino}-cyclohexanecarboxylic acid ethyl ester (0.215 g).
Workup
- temperatureThe reaction mixture was cooled to RT
- filtrationThe resulting solid was filtered
- customdried
- custompurified by ISCO
- customFractions were collected
- concentrationconcentrated
- filtrationThe resulting solid was filtered
- customdried at 50° C. under vacuum overnight
Sources & evidence
- ORD record
- ord-1dd7c7df0772475aa911071df8d9509b
- Source dataset
- uspto-grants-2013_10
- Patent number
- US08569306B2
Linked notes
Loading…