Sodium Bicarbonate → (5R)-5-(5-(3-chloro-6,7-dihydro-5H-cyclopenta[b]pyridin-7-ylamino)-2-fluorophenyl)-6,6-difluoro-5-methyl-1,4-oxazepan-3-one

HRID 403254Notes

Reaction equation

[Cl:1][C:2]1[CH:3]=[N:4][C:5]2[C:6](=O)[CH2:7][CH2:8][C:9]=2[CH:10]=1.[NH2:12][C:13]1[CH:14]=[CH:15][C:16]([F:30])=[C:17]([C@:19]2([CH3:29])[C:25]([F:27])([F:26])[CH2:24][O:23][CH2:22][C:21](=[O:28])[NH:20]2)[CH:18]=1.[B][B][B][B][B][B][B][B][B][B].C([O-])(O)=O.[Na+]>CO.ClCCl>[Cl:1][C:2]1[CH:10]=[C:9]2[CH2:8][CH2:7][CH:6]([NH:12][C:13]3[CH:14]=[CH:15][C:16]([F:30])=[C:17]([C@:19]4([CH3:29])[C:25]([F:26])([F:27])[CH2:24][O:23][CH2:22][C:21](=[O:28])[NH:20]4)[CH:18]=3)[C:5]2=[N:4][CH:3]=1

Participants

Conditions

Temperature: 23 °C

Procedure

To a solution of 3-chloro-5,6-dihydro-[1]pyrindin-7-one (28 mg, 167 μmol) in methanol (6 ml) and dichloromethane (750 μl) at 23° C. was added (R)-5-(5-amino-2-fluorophenyl)-6,6-difluoro-5-methyl-1,4-oxazepan-3-one (intermediate A21A) (49.9 mg, 182 μmol) followed by decaborane (5.6 mg, 167 μmol) and the mixture was stirred at 23° C. for 22 hours. After completion, the mixture was poured into aqueous NaHCO3 solution, extracted with ethyl acetate, the organic layers were dried over Na2SO4 and the solvent evaporated. The crude material was purified by silica gel flash chromatography with n-heptane/ethyl acetate to give the (5R)-5-(5-(3-chloro-6,7-dihydro-5H-cyclopenta[b]pyridin-7-ylamino)-2-fluorophenyl)-6,6-difluoro-5-methyl-1,4-oxazepan-3-one (62 mg, 87%) as an orange solid. MS (ISP): m/z=426.1 [(M+H)+] and 428.1 [(M+2+H)+].

Workup

extractionextracted with ethyl acetate
dry with materialthe organic layers were dried over Na2SO4
customthe solvent evaporated
customThe crude material was purified by silica gel flash chromatography with n-heptane/ethyl acetate

Sources & evidence

ORD record: ord-054a38bd023a4888abeb8569f8f71e37
Source dataset: uspto-grants-2014_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08748418B2

Reaction notes

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