Hydrochloric Acid → 5-(1'-{[3,5-Diethoxy-4-(1-methyl-1H-pyrazol-4-yl)phenyl]carbonyl}-4-oxospiro[chroman-2,4'-piperidin]-6-yl)pyridine-3-carboxylic acid

HRID 1096898Notes

Reaction equation

HRID 1096898 reaction equation
C(N1C=CN=C1)(N1C=CN=C1)=O.[CH2:13]([O:15][C:16]1[CH:17]=[C:18]([CH:22]=[C:23]([O:31][CH2:32][CH3:33])[C:24]=1[C:25]1[CH:26]=[N:27][N:28]([CH3:30])[CH:29]=1)[C:19](O)=[O:20])[CH3:14].Cl.Cl.[O:36]=[C:37]1[C:51]2[C:46](=[CH:47][CH:48]=[C:49]([C:52]3[CH:53]=[C:54]([C:58]([OH:60])=[O:59])[CH:55]=[N:56][CH:57]=3)[CH:50]=2)[O:45][C:39]2([CH2:44][CH2:43][NH:42][CH2:41][CH2:40]2)[CH2:38]1.Cl>O.C(N(CC)CC)C.CN(C=O)C>[CH2:13]([O:15][C:16]1[CH:17]=[C:18]([C:19]([N:42]2[CH2:41][CH2:40][C:39]3([CH2:38][C:37](=[O:36])[C:51]4[C:46](=[CH:47][CH:48]=[C:49]([C:52]5[CH:53]=[C:54]([C:58]([OH:60])=[O:59])[CH:55]=[N:56][CH:57]=5)[CH:50]=4)[O:45]3)[CH2:44][CH2:43]2)=[O:20])[CH:22]=[C:23]([O:31][CH2:32][CH3:33])[C:24]=1[C:25]1[CH:26]=[N:27][N:28]([CH3:30])[CH:29]=1)[CH3:14]

Participants

8

Reactant 4

HCID 313Hydrochloric AcidHCID 682631,1'-CarbonyldiimidazoleHCID 579310273,5-diethoxy-4-(1-methyl-1H-pyrazol-4-yl)benzoic acidHCID 666494905-{4-Oxospiro[chroman-2,4'-piperidin]-6-yl}nicotinic acid di-hydrochloride

Product 1

HCID 249996275-(1'-{[3,5-Diethoxy-4-(1-methyl-1H-pyrazol-4-yl)phenyl]carbonyl}-4-oxospiro[chroman-2,4'-piperidin]-6-yl)pyridine-3-carboxylic acid

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6228DimethylformamideSolvent2×HCID 8471TriethylamineSolvent2×

Conditions

Temperature
70 °C

Procedure

Carbonyldiimidazole (130 mg) and triethylamine (0.446 mL) were added to a DMF solution (4 mL) of 3,5-diethoxy-4-(1-methyl-1H-pyrazol-4-yl)benzoic acid (232 mg), and stirred at 70° C. for 2 hours. To the reaction liquid, added was a DMF suspension (2 ml) of 5-(4-oxospiro[chroman-2,4′-piperidin]-6-yl)pyridine-3-carboxylic acid dihydrochloride (370 mg) and triethylamine (0.335 ml) that had been prepared separately, and further stirred at that temperature for 1 hour. 1 N hydrochloric acid and water were added to the reaction liquid, the resulting solid was taken out through filtration, and recrystallized from methanol to obtain the title compound.

Workup

  1. customTo the reaction liquid
  2. additionadded
  3. customhad been prepared separately
  4. stirringfurther stirred at that temperature for 1 hour
  5. filtrationthe resulting solid was taken out through filtration
  6. customrecrystallized from methanol

Sources & evidence

ORD record
ord-e4d71b967deb4ecaa6461ed05cb7bf91
Source dataset
uspto-grants-2012_03
Patent number
US08138197B2

Reaction notes

Loading…