Sodium borohydride → HCID 66842788, compound

Participants

Reaction Steps

N-{[4-((2R,3R)-1-(4-fluorophenyl)-3-{[2-(4-fluorophenyl)-2-oxoethyl]thio}-4-oxoazetidin-2-yl)phenoxy]acetyl}glycyl-D-ornithine (0.021 g, 0.032 mmole) was dissolved in methanol (1.5 mL). NaBH4 (0.0032 g, 0.085 mmole) was added and after about 15 min the reaction was complete according to LC-MS. A few drops of acetic acid was added. The solvent was removed under reduced pressure and the residue was purified by preparative HPLC on a Kromasil C8-column using 37% MeCN in 0.1M ammonium acetate buffer as eluent. After freeze-drying, 0.018 g (85%) of the desired product was obtained.

Provenance & Evidence