%% 
%%  The LaTeX Graphics Companion, 2ed (first printing May 2007)
%% 
%%  Example 8-2-32 on page 536.
%% 
%%  Copyright (C) 2007 Michel Goossens, Frank Mittelbach, Denis Roegel, Sebastian Rahtz, Herbert Vo\ss 
%% 
%%  It may be distributed and/or modified under the conditions
%%  of the LaTeX Project Public License, either version 1.3
%%  of this license or (at your option) any later version.
%% 
%%  See http://www.latex-project.org/lppl.txt for details.
%% 

\documentclass{ttctexa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{207.83385pt}
\AtBeginDocument{\setlength\unitlength{0.09pt}}
\StartShownPreambleCommands
\usepackage{xymtex}
\StopShownPreambleCommands
\begin{document}
\bzdrv{1==OH;5==CH$\sb{3}$;4==OC$\sb{16}$H$\sb{33}$;%
       2==\ryl(4==NH--SO$\sb{2}$){4==\bzdrh{1==(yl);%
            2==OCH$\sb{2}$CH$\sb{2}$OCH$\sb{3}$;%
            5==\ryl(2==NH--SO$\sb{2}$){4==\bzdrh{1==(yl);%
                 5==\ryl(2==SO$\sb{2}$--NH){4==\naphdrh{1==(yl);5==OH;%
                      8==\lyl(4==N=N){4==\bzdrh{4==(yl);1==NO$\sb{2}$;%
                           5==SO$\sb{2}$CH$\sb{3}$}}}}}}}}}

\end{document}