Pyridine → HCID 86614042, compound

Participants

Reaction Steps

To (1S,2R,4aS,5S,8R,8aR)-2-(acetyloxy)-8a-hydroxy-5-{2-[(1H-imidazol-1-ylcarbonyl)oxy]-1-methylethyl}-3,8-dimethyl-1,2,4a,5,6,7,8,8a-octahydronaphthalen-1-yl (2S,3aR,9bR)-6-chloro-9b-hydroxy-5-methyl-1,2,3,3a,5,9b-hexahydropyrrolo[2,3-c][2,1]benzoxazine-2-carboxylate (Preparation 143, 80 mg, 0.12 mmol) in pyridine (5 ml) was added 4-dimethylaminopyridine (16 mg, 0.13 mmol) followed by N-1-naphthyethylenediamine dihydrochloride salt (32 mg, 0.12 mmol). After stirring the reaction mixture for 48 h, the reaction mixture was concentrated in vacuo and purified by flash chromatography eluting with hexane ethyl acetate (2:1 and then 1:1) to give the pure title compound.

Provenance & Evidence