(R)-2-((R)-carboxy(2-((difluoromethyl)thio)acetamido)(methoxy)methyl)-5-(((1-(2-hydroxyethyl)-1H-tetrazol-5-yl)thio)methyl)-3,6-dihydro-2H-1,3-oxazine-4-carboxylic acid
(R)-2-((R)-carboxy(2-((difluoromethyl)thio)acetamido)(methoxy)methyl)-5-(((1-(2-hydroxyethyl)-1H-tetrazol-5-yl)thio)methyl)-3,6-dihydro-2H-1,3-oxazine-4-carboxylic acid