%% 
%%  The LaTeX Graphics Companion, 2ed (first printing May 2007)
%% 
%%  Example 8-2-31 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}
\cyclohexanev[]{%
  1==\lyl(8==SO$\sb{2}$--HN){1==\bzdrh{5==(yl)}};%
  6==\lyl(5==SO$\sb{2}$--NH){4==\bzdrh{4==(yl)}};%
  5==\lyl(3==SO$\sb{2}$--NH){4==\bzdrh{4==(yl)}};%
  4==\lyl(0==SO$\sb{2}$--HN){7==\bzdrh{3==(yl)}}}
\quad
\cyclohexanev[]{%
  1==\ryl(8==NH--SO$\sb{2}$){1==\bzdrh{6==(yl)}};%
  2==\ryl(5==NH--SO$\sb{2}$){4==\bzdrh{1==(yl)}};%
  3==\ryl(3==NH--SO$\sb{2}$){4==\bzdrh{1==(yl)}};%
  4==\ryl(0==NH--SO$\sb{2}$){7==\bzdrh{2==(yl)}}}
\end{document}