HCID 66842673, compound → HCID 66843232, compound

Participants

Reaction Steps

(2R)-cyclohexyl[(N-([4-((2R,3R)-1-(4-fluorophenyl)-3-{[2-(4-fluorophenyl)-2-oxoethyl]thio)-4-oxoazetidin-2-yl)phenoxy]acetyl}glycyl)amino]acetic acid (0.0085 g, 0.013 mmol) was dissolved in methanol (2 ml). NABH4 (0.006 g, 0.159 mmol) was added and when 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 a stepwise gradient of 35%, 40% then 50% MeCN in 0.1M ammonium acetate buffer as eluent. After freeze-drying, 0.007 g (82%) of the title product was obtained. NMR (500 MHz, CD3COOD) 1.05-1.33 (m, 5H), 1.60-1.87 (m, 6H), 2.91-3.07 (m, 2H), 3.94-4.06 (m, 3H), 4.32 (d, 1H), 4.60 (s, 2H), 4.79-4.86 (m, 1H), 4.90 (d, 0.5H), 4.92 (d, 0.5H), 6.96-7.03 (m, 4H), 7.03-7.08 (brd, 2H), 7.25-7.31 (m, 2H), 7.31-7.38 (m, 4H)

Provenance & Evidence