Trifluoroacetic acid → HCID 86587867, compound

Participants

Reaction Steps

(5R,7S,8R)-8-{[4-(2H-chromen-4-yl)benzoyl]amino}-1-oxaspiro[4.4]nonane-7-carboxylate from reaction (34e) (0.10 g, 0.23 mmol) was dissolved in a solution of hydroxylamine hydrochloride, methanol and sodium methoxide, (2 mL) under nitrogen atmosphere at room temperature. The reaction was stirred for 1 h, made neutral with TFA, concentrated and purified by HPLC on a C-18 column eluting with an acetonitrile:water:TFA gradient, to give the title compound (0.032 g, 32%) as a white solid. MS found: (M−H)+=433.

Provenance & Evidence