Sulfuric Acid → N-(3-{8-(2,6-difluorophenyl)-7-oxo-2-[(2,2,6,6-tetramethyl-4-piperidinyl)amino]-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl}-4-methylphenyl)-3-thiophenecarboxamide sulfate

HRID 222972Notes

Reaction equation

HRID 222972 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([F:8])[C:3]=1[N:9]1[C:14]2[N:15]=[C:16]([NH:34][CH:35]3[CH2:40][C:39]([CH3:42])([CH3:41])[NH:38][C:37]([CH3:44])([CH3:43])[CH2:36]3)[N:17]=[C:18]([C:19]3[CH:20]=[C:21]([NH:26][C:27]([C:29]4[CH:33]=[CH:32][S:31][CH:30]=4)=[O:28])[CH:22]=[CH:23][C:24]=3[CH3:25])[C:13]=2[CH:12]=[CH:11][C:10]1=[O:45].[S:46](=[O:50])(=[O:49])([OH:48])[OH:47]>CC(C)=O>[S:46]([OH:50])([OH:49])(=[O:48])=[O:47].[F:8][C:4]1[CH:5]=[CH:6][CH:7]=[C:2]([F:1])[C:3]=1[N:9]1[C:14]2[N:15]=[C:16]([NH:34][CH:35]3[CH2:36][C:37]([CH3:43])([CH3:44])[NH:38][C:39]([CH3:42])([CH3:41])[CH2:40]3)[N:17]=[C:18]([C:19]3[CH:20]=[C:21]([NH:26][C:27]([C:29]4[CH:33]=[CH:32][S:31][CH:30]=4)=[O:28])[CH:22]=[CH:23][C:24]=3[CH3:25])[C:13]=2[CH:12]=[CH:11][C:10]1=[O:45]

Participants

4

Reactant 2

HCID 1118Sulfuric AcidHCID 11947981N-(3-{8-(2,6-difluorophenyl)-7-oxo-2-[(2,2,6,6-tetramethyl-4-piperidinyl)amino]-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl]-4-methylphenyl)-3-thiophenecarboxamide

Product 1

HCID 67511452N-(3-{8-(2,6-difluorophenyl)-7-oxo-2-[(2,2,6,6-tetramethyl-4-piperidinyl)amino]-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl}-4-methylphenyl)-3-thiophenecarboxamide sulfate

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Procedure

Added 400 uL of acetone to N-(3-{8-(2,6-difluorophenyl)-7-oxo-2-[(2,2,6,6-tetramethyl-4-piperidinyl)amino]-7,8-dihydropyrido[2,3-d]pyrimidin-4-yl}-4-methylphenyl)-3-thiophenecarboxamide (9.1 mg), mostly dissolved. Added sulfuric acid (1.1 eq; 1M in water). After about 2.5 weeks, a lot of crystals were seen, and this was filtered and dried to provide the title compound.

Workup

  1. dissolutionmostly dissolved
  2. waitAfter about 2.5 weeks
  3. filtrationthis was filtered
  4. customdried

Sources & evidence

ORD record
ord-3fc2555daf45418ca17c0a0d355817cb
Source dataset
uspto-grants-2012_06
Patent number
US08207176B2

Reaction notes

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