Triethylamine → (8S)-9-[2-(6-methyl pyrid-3-yl)-2-oxoethyl]-2-(1S,4S)-2-oxa-5-azabicyclo[2.2.1]hept-5-yl-8-trifluoromethyl-6,7,8,9-tetrahydropyrimido[1,2-a]pyrimidin-4-one

HRID 633749Notes

Reaction equation

HRID 633749 reaction equation
Cl[C:2]1[N:3]=[C:4]2[N:12]([CH2:13][C:14]([C:16]3[CH:17]=[N:18][C:19]([CH3:22])=[CH:20][CH:21]=3)=[O:15])[C@H:11]([C:23]([F:26])([F:25])[F:24])[CH2:10][CH2:9][N:5]2[C:6](=[O:8])[CH:7]=1.Cl.[C@H:28]12[CH2:34][C@H:31]([NH:32][CH2:33]1)[CH2:30][O:29]2.C(N(CC)CC)C>>[CH3:22][C:19]1[N:18]=[CH:17][C:16]([C:14](=[O:15])[CH2:13][N:12]2[C:4]3=[N:3][C:2]([N:32]4[CH2:33][C@@H:28]5[CH2:34][C@H:31]4[CH2:30][O:29]5)=[CH:7][C:6](=[O:8])[N:5]3[CH2:9][CH2:10][C@H:11]2[C:23]([F:26])([F:25])[F:24])=[CH:21][CH:20]=1

Participants

4

Reactant 3

HCID 8471TriethylamineHCID 21303398(1S,4S)-2-oxa-5-azabicyclo(2.2.1)heptane hydrochlorideHCID 118194335(8S)-2-chloro-9-[2-(6-methylpyrid-3-yl)-2-oxoethyl]-8-trifluoromethyl-6,7,8,9-tetrahydropyrimido[1,2-a]pyrimidin-4-one

Product 1

HCID 72709522(8S)-9-[2-(6-methyl pyrid-3-yl)-2-oxoethyl]-2-(1S,4S)-2-oxa-5-azabicyclo[2.2.1]hept-5-yl-8-trifluoromethyl-6,7,8,9-tetrahydropyrimido[1,2-a]pyrimidin-4-one

Procedure

480 mg (1.24 mmol) of (8S)-2-chloro-9-[2-(6-methylpyrid-3-yl)-2-oxoethyl]-8-trifluoromethyl-6,7,8,9-tetrahydropyrimido[1,2-a]pyrimidin-4-one, 201.94 mg (1.49 mmol) of (1S,4S)-2-oxa-5-azabicyclo[2.2.1]heptane hydrochloride and 313.97 mg (3.10 mmol) of triethylamine were used in the reaction. After purification by chromatography on silica gel (eluent A/B: heptane/EtOAc, gradient A/B: t 0 min 30% B, t 35 min 60% B, t 40 min 60% B), 335 mg of (8S)-9-[2-(6-methylpyrid-3-yl)-2-oxoethyl]-2-(1S,4S)-2-oxa-5-azabicyclo[2.2.1]hept-5-yl-8-trifluoromethyl-6,7,8,9-tetrahydropyrimido[1,2-a]pyrimidin-4-one were obtained, corresponding to the following characteristics:

Workup

  1. customAfter purification by chromatography on silica gel (eluent A/B: heptane/EtOAc, gradient A/B: t 0 min 30% B, t 35 min 60% B, t 40 min 60% B), 335 mg of (8S)-9-[2-(6-methylpyrid-3-yl)-2-oxoethyl]-2-(1S,4S)-2-oxa-5-azabicyclo[2.2.1]hept-5-yl-8-trifluoromethyl-6,7,8,9-tetrahydropyrimido[1,2-a]pyrimidin-4-one
  2. customwere obtained, corresponding to the following characteristics

Sources & evidence

ORD record
ord-671c8cb4ac96451083425a2392660be6
Source dataset
uspto-grants-2016_04
Patent number
US09321790B2

Reaction notes

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