Benzenesulfonic Acid → Benzenesulfonic Acid

HRID 1754443Notes

Reaction equation

HRID 1754443 reaction equation
[NH2:1][C:2]1[C:3]([F:26])=[CH:4][C:5]([O:15][CH2:16][CH2:17][O:18][Si](C(C)(C)C)(C)C)=[C:6]([N:8]2[C:12](=[O:13])[N:11]([CH3:14])[N:10]=[N:9]2)[CH:7]=1.Cl[C:28]1[N:33]=[C:32]([NH:34][C@@H:35]2[CH2:43][C@H:42]3[N:38]([CH2:39][CH2:40][CH2:41]3)[C:37]([CH3:45])([CH3:44])[CH2:36]2)[C:31]([C:46]#[N:47])=[CH:30][N:29]=1.[C:48]1([S:54]([OH:57])(=[O:56])=[O:55])[CH:53]=[CH:52][CH:51]=[CH:50][CH:49]=1>CC(O)C>[CH3:44][C:37]1([CH3:45])[CH2:36][C@H:35]([NH:34][C:32]2[C:31]([C:46]#[N:47])=[CH:30][N:29]=[C:28]([NH:1][C:2]3[CH:7]=[C:6]([N:8]4[C:12](=[O:13])[N:11]([CH3:14])[N:10]=[N:9]4)[C:5]([O:15][CH2:16][CH2:17][OH:18])=[CH:4][C:3]=3[F:26])[N:33]=2)[CH2:43][C@H:42]2[N:38]1[CH2:39][CH2:40][CH2:41]2.[C:48]1([S:54]([OH:57])(=[O:56])=[O:55])[CH:53]=[CH:52][CH:51]=[CH:50][CH:49]=1

Participants

6

Reactant 3

HCID 7371Benzenesulfonic AcidHCID 86704483(7R,8aS)-N-(2-chloro-5-cyanopyrimidin-4-yl)-octahydro-5,5-dimethylindolizin-7-amineHCID 867044861-(5-amino-2-(2-(tert-butyldimethylsilyl)oxyethoxy)-4-fluorophenyl)-4-methyl-1H-tetrazol-5(4H)-one

Product 2

HCID 7371Benzenesulfonic AcidHCID 718115574-((7R,8aS)-octahydro-5,5-dimethylindolizin-7-ylamino)-2-(4-(2-hydroxyethoxy)-2-fluoro-5-(4,5-dihydro-4-methyl-5-oxotetrazol-1-yl)phenylamino)pyrimidine-5-carbonitrile

Reagents, catalysts & solvents 1

HCID 3776IsopropanolSolvent

Conditions

Temperature
80 °C

Procedure

A mixture of 1-(5-amino-2-(2-(tert-butyldimethylsilyl)oxyethoxy)-4-fluorophenyl)-4-methyl-1H-tetrazol-5(4H)-one (200 mg), (7R,8aS)—N-(2-chloro-5-cyanopyrimidin-4-yl)-octahydro-5,5-dimethylindolizin-7-amine (120 mg), and benzenesulfonic acid (120 mg) in IPA (2 mL) was heated to 80° C. overnight. After cooling to ambient temperature, the crude mixture was concentrated to dryness. The crude product was absorbed onto silica gel and purified by CombiFlash chromatography (2N NH3 in MeOH/CH2Cl2=0-20%) to give desired product with benzenesulfonic acid. The methanol solution of the salt was passed through an ion-exchange resin column to remove acid to give the free base of compound 78 (120 mg, 57%).

Workup

  1. temperatureAfter cooling to ambient temperature
  2. concentrationthe crude mixture was concentrated to dryness
  3. customThe crude product was absorbed onto silica gel
  4. custompurified by CombiFlash chromatography (2N NH3 in MeOH/CH2Cl2=0-20%)

Sources & evidence

ORD record
ord-50f98e2a38074d1da4b11d78c8cc9a28
Source dataset
uspto-grants-2015_10
Patent number
US09169249B2

Reaction notes

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