Ethyl 4-aminocyclohexanecarboxylate → 4-{4-[8-(1-Hydroxy-1-methyl-ethyl)-imidazo[1,2-a]pyridin-3-yl]-pyrimidin-2-ylamino}-cyclohexanecarboxylic acid ethyl ester

HRID 1046529Notes

Reaction equation

HRID 1046529 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

Reactant 2

HCID 409963Ethyl 4-aminocyclohexanecarboxylateHCID 666162852-[3-(2-Methylsulfinyl-pyrimidin-4-yl)-imidazo[1,2-a]pyridin-8-yl]-propan-2-ol

Product 1

HCID 666162114-{4-[8-(1-Hydroxy-1-methyl-ethyl)-imidazo[1,2-a]pyridin-3-yl]-pyrimidin-2-ylamino}-cyclohexanecarboxylic acid ethyl esterYield 84.5%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 13387N-methyl-2-pyrrolidoneSolvent

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

  1. temperatureThe reaction mixture was cooled to RT
  2. filtrationThe resulting solid was filtered
  3. customdried
  4. custompurified by ISCO
  5. customFractions were collected
  6. concentrationconcentrated
  7. filtrationThe resulting solid was filtered
  8. customdried at 50° C. under vacuum overnight

Sources & evidence

ORD record
ord-1dd7c7df0772475aa911071df8d9509b
Source dataset
uspto-grants-2013_10
Patent number
US08569306B2

Reaction notes

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