30200-14-7 | (2S,5R,6R)-3,3-Dimethyl-6-(phenylacetylamino)-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 4-methoxybenzyl ester | (2S,5R,6R)-3,3-Dimethyl-6-(phenylacetylamino)-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid 4-methoxybenzyl ester |