"Nafcillin"@en . "C0027324" . "Nafcillin"@en . . . "4-Thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 6-(((2-ethoxy-1-naphthalenyl)carbonyl)amino)-3,3-dimethyl-7-oxo-, (2S-(2alpha,5alpha,6beta))-"@en . "Naphthamidopenicillin"@en . . . . . "D009254" .