磺胺嘧啶

$结构式：$

\usepackage{chemfig}
\begin{document}
\chemfig{
NH_2-[2,0.6]**6(
	-
	-
	-(-[,0.6]S
		(=[0,0.7]O)
		(=[4,0.7]O)
		(-[2,0.7]NH-[2,0.7]
			=[0.5,0.5]N-[2,0.5]=[3.5,0.5]-[4.5,0.5]=[6,0.5]N-[7.5,0.5]
		)
	)
	-
	-
	-
)
}
\end{document}