3-Oxo-azetidine-1-carboxylic acid tert-butyl ester → methyl 10-bromo-3-(1-(tert-butoxycarbonyl)-3-hydroxyazetidin-3-yl)-9-fluoro-6,7-dihydro-5H-5,7-methanobenzo[c]imidazo[1,2-a]azepine-2-carboxylate

HRID 575340Notes

Reaction equation

HRID 575340 reaction equation
[Br:1][C:2]1[C:3]([F:21])=[CH:4][C:5]2[CH:11]3[CH2:12][CH:9]([CH2:10]3)[N:8]3[CH:13]=[C:14]([C:16]([O:18][CH3:19])=[O:17])[N:15]=[C:7]3[C:6]=2[CH:20]=1.[O:22]=[C:23]1[CH2:26][N:25]([C:27]([O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[O:28])[CH2:24]1>>[Br:1][C:2]1[C:3]([F:21])=[CH:4][C:5]2[CH:11]3[CH2:10][CH:9]([CH2:12]3)[N:8]3[C:13]([C:23]4([OH:22])[CH2:24][N:25]([C:27]([O:29][C:30]([CH3:32])([CH3:31])[CH3:33])=[O:28])[CH2:26]4)=[C:14]([C:16]([O:18][CH3:19])=[O:17])[N:15]=[C:7]3[C:6]=2[CH:20]=1

Participants

3

Reactant 2

HCID 15194043-Oxo-azetidine-1-carboxylic acid tert-butyl esterHCID 86693079Methyl 10-bromo-9-fluoro-6,7-dihydro-5H-5,7-methanobenzo[c]imidazo[1,2-a]azepine-2-carboxylate

Product 1

HCID 86693375methyl 10-bromo-3-(1-(tert-butoxycarbonyl)-3-hydroxyazetidin-3-yl)-9-fluoro-6,7-dihydro-5H-5,7-methanobenzo[c]imidazo[1,2-a]azepine-2-carboxylate

Procedure

Methyl 10-bromo-9-fluoro-6,7-dihydro-5H-5,7-methanobenzo[c]imidazo[1,2-a]azepine-2-carboxylate (0.3 g) was reacted with tert-butyl 3-oxoazetidine-1-carboxylate similar to as described in example 8 with non-critical modifications to produce methyl 10-bromo-3-(1-(tert-butoxycarbonyl)-3-hydroxyazetidin-3-yl)-9-fluoro-6,7-dihydro-5H-5,7-methanobenzo[c]imidazo[1,2-a]azepine-2-carboxylate. This crude intermediate was reacted via General Procedure L then deprotected with 4N HCl in dioxane (5 eq) at room temperature to provide 10-bromo-9-fluoro-3-(3-hydroxyazetidin-3-yl)-6,7-dihydro-5H-5,7-methanobenzo[c]imidazo[1,2-a]azepine-2-carboxamide. 10-bromo-9-fluoro-3-(3-hydroxyazetidin-3-yl)-6,7-dihydro-5H-5,7-methanobenzo[c]imidazo[1,2-a]azepine-2-carboxamide was reacted with cyclopropane carboxylic acid similar to as described in Example 2 with non-critical modifications to afford crude 10-bromo-3-(1-(cyclopropanecarbonyl)-3-hydroxyazetidin-3-yl)-9-fluoro-6,7-dihydro-5H-5,7-methanobenzo[c]imidazo[1,2-a]azepine-2-carboxamide which was then reacted with 2-Methyl-3-butyne-ol via General Procedure F to afford 7.9 mg (71.8%) 3-[1-(cyclopropanecarbonyl)-3-hydroxy-azetidin-3-yl]-9-fluoro-10-(3-hydroxy-3-methyl-but-1-ynyl)-5,6,7,12-tetrahydro-5,7-methanobenzo[c]imidazo[1,2-a]azepine-2-carboxamide.

Sources & evidence

ORD record
ord-9957f70bbe2249dba8ed24f8351c9052
Source dataset
uspto-grants-2015_05
Patent number
US09034866B2

Reaction notes

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