Pyridine → N-[3-[(4aR,7aS)-2-amino-6-(5-fluoropyrimidin-2-yl)-4,4a,5,7-tetrahydropyrrolo[3,4-d][1,3]thiazin-7a-yl]phenyl]-5-fluoro-pyridine-2-carboxamide

HRID 876743Notes

Reaction equation

HRID 876743 reaction equation
C([NH:9][C:10]1[S:11][CH2:12][C@@H:13]2[CH2:18][N:17]([C:19]3[N:24]=[CH:23][C:22]([F:25])=[CH:21][N:20]=3)[CH2:16][C@:14]2([C:26]2[CH:27]=[C:28]([NH:32][C:33]([C:35]3[CH:40]=[CH:39][C:38]([F:41])=[CH:37][N:36]=3)=[O:34])[CH:29]=[CH:30][CH:31]=2)[N:15]=1)(=O)C1C=CC=CC=1.Cl.CON.N1C=CC=CC=1>C(O)C>[NH2:9][C:10]1[S:11][CH2:12][C@@H:13]2[CH2:18][N:17]([C:19]3[N:24]=[CH:23][C:22]([F:25])=[CH:21][N:20]=3)[CH2:16][C@:14]2([C:26]2[CH:27]=[C:28]([NH:32][C:33]([C:35]3[CH:40]=[CH:39][C:38]([F:41])=[CH:37][N:36]=3)=[O:34])[CH:29]=[CH:30][CH:31]=2)[N:15]=1

Participants

5

Reactant 3

HCID 1049PyridineHCID 521874O-Methylhydroxylamine hydrochlorideHCID 86762769N-[3-[(4aR,7aS)-2-Benzamido-6-(5-fluoropyrimidin-2-yl)-4,4a,5,7-tetrahydropyrrolo[3,4-d][1,3]thiazin-7a-yl]phenyl]-5-fluoro-pyridine-2-carboxamide

Product 1

HCID 86762780N-[3-[(4aR,7aS)-2-amino-6-(5-fluoropyrimidin-2-yl)-4,4a,5,7-tetrahydropyrrolo[3,4-d][1,3]thiazin-7a-yl]phenyl]-5-fluoro-pyridine-2-carboxamideYield 84%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Conditions

Temperature
65 °C

Procedure

A mixture of N-[3-[(4aR,7aS)-2-benzamido-6-(5-fluoropyrimidin-2-yl)-4,4a,5,7-tetrahydropyrrolo[3,4-d][1,3]thiazin-7a-yl]phenyl]-5-fluoro-pyridine-2-carboxamide (320 mg, 560 μmol), O-methylhydroxylamine hydrochloride (485 mg, 5.60 mmol) and pyridine (453 μL, 5.60 mmol) in ethanol (15 mL) is heated at 65° C. in a capped vial for five hours. The reaction is cooled and the solvent removed in vacuo. The crude product is purified over silica gel with a 30 minute 0.5% to 10% gradient of 7 N ammonia in methanol dichloromethane gradient to give N-[3-[(4aR,7aS)-2-amino-6-(5-fluoropyrimidin-2-yl)-4,4a,5,7-tetrahydropyrrolo[3,4-d][1,3]thiazin-7a-yl]phenyl]-5-fluoro-pyridine-2-carboxamide (219 mg, 84%). This material is dissolved in dichloromethane (1 mL) and methanol (0.5 mL) and 1 M hydrogen chloride in diethyl ether (0.47 mL, 470 μmol) is added. The solvent is removed in vacuo to give the title compound (228 mg, 81%). ES/MS (m/e): 468 (M+H).

Workup

  1. temperatureThe reaction is cooled
  2. customthe solvent removed in vacuo
  3. customThe crude product is purified over silica gel with a 30 minute 0.5% to 10% gradient of 7 N ammonia in methanol dichloromethane gradient

Sources & evidence

ORD record
ord-56a37652dc5748eaa0405839c7821c59
Source dataset
uspto-grants-2015_03
Patent number
US08987254B2

Reaction notes

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