Hydrochloric Acid → [(R)-5-(5-amino-2-fluoro-phenyl)-6,6-difluoro-5-methyl-2,5,6,7-tetrahydro-[1,4]oxazepin-3-yl]-[bis-(4-methoxy-phenyl)-phenyl-methyl]-amine

HRID 403229Notes

Reaction equation

[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([C:9]([C:48]2[CH:53]=[CH:52][C:51]([O:54][CH3:55])=[CH:50][CH:49]=2)([C:42]2[CH:47]=[CH:46][CH:45]=[CH:44][CH:43]=2)[NH:10][C:11]2[CH2:12][O:13][CH2:14][C:15]([F:41])([F:40])[C@:16]([C:19]3[CH:24]=[C:23]([N:25]=C(C4C=CC=CC=4)C4C=CC=CC=4)[CH:22]=[CH:21][C:20]=3[F:39])([CH3:18])[N:17]=2)=[CH:5][CH:4]=1.Cl>O1CCOCC1>[NH2:25][C:23]1[CH:22]=[CH:21][C:20]([F:39])=[C:19]([C@:16]2([CH3:18])[C:15]([F:41])([F:40])[CH2:14][O:13][CH2:12][C:11]([NH:10][C:9]([C:48]3[CH:49]=[CH:50][C:51]([O:54][CH3:55])=[CH:52][CH:53]=3)([C:6]3[CH:7]=[CH:8][C:3]([O:2][CH3:1])=[CH:4][CH:5]=3)[C:42]3[CH:43]=[CH:44][CH:45]=[CH:46][CH:47]=3)=[N:17]2)[CH:24]=1

Participants

Conditions

Temperature: 23 °C

Procedure

To a solution of (R)—N-(bis(4-methoxyphenyl)(phenyl)methyl)-5-(5-(diphenylmethyleneamino)-2-fluorophenyl)-6,6-difluoro-5-methyl-2,5,6,7-tetrahydro-1,4-oxazepin-3-amine (intermediate A9A) (3.55 g, 4.8 mmol) in dioxane (100 ml) at 23° C. was added 1 M hydrochloric acid (4.8 ml, 4.8 mmol) and the mixture was stirred at 23° C. for 3 h. The reaction mixture was concentrated in vacuum and the residue was purified by silica gel flash chromatography with n-heptane/ethyl acetate to give the [(R)-5-(5-amino-2-fluoro-phenyl)-6,6-difluoro-5-methyl-2,5,6,7-tetrahydro-[1,4]oxazepin-3-yl]-[bis-(4-methoxy-phenyl)-phenyl-methyl]-amine (1.45 g, 52%) as a white foam. MS (ISP): m/z=576.5 [M+H]+.

Workup

concentrationThe reaction mixture was concentrated in vacuum
customthe residue was purified by silica gel flash chromatography with n-heptane/ethyl acetate

Sources & evidence

ORD record: ord-5f29fc3adad34edf80955a33111d57f7
Source dataset: uspto-grants-2014_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08748418B2

Reaction notes

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