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\documentclass[b5j,9pt]{tetsujsarticle}
\usepackage{tetsuchem}
\pagestyle{empty}

\begin{document}
\baselineskip21.6pt \large

\配列区切り文字の変更{//}
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    ヘッダ下端と本文上端の縦間隔=10truept+.2truecm,
    ヘッダと本文を仕切る線の太さ=0truept,
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\nousece
\setcrambond{2pt}{}{}
\alt||<\Kakko>[3]~1zw~:0zw:,0zw,{
\chemfig{O?-[5,1.5](-[2,0.75]H)(-[6,1]OH)<[7,1.5](-[2,0.75]OH)(-[6,0.75]H)-[,1.75,,,line width=2.6pt](-[2,0.75]H)(-[6,0.75]OH)>[1,1.5](-[2,0.75]OH)(-[6,0.75]H)-[3,1.5]?(-[2,0.75]H)(-[:-120,0.75,,1]CH_2-[4,0.9,1,2]HO)}//
\chemfig{?(-[2,0.75]H)(-[6,0.5]OH)-[5,1.5](-[2,1]OH)(-[6,0.75]H)<[7,1.5]O-[,1.75,,,line width=2.6pt](-[6,0.75]H)(-[:120,1,,1]CH_2-[4,0.9,1,2]HO)>[1,1.5](-[2,0.75]H)(-[6,0.75]OH)-[3,1.5]?(-[2,0.75]OH)(-[6,0.5]H)}//
\chemfig{?(-[2,0.75]CH_2-[,1.1]OH)(-[6,0.75]H)-[5,1.5](-[2,0.75]H)(-[6,1]OH)<[7,1.5](-[2,0.75]H)(-[6,0.75]OH)-[,1.75,,,line width=2.6pt](-[2,1]OH)(-[6,0.75]H)>[1,1.5](-[2,0.75]OH)(-[6,0.75]H)-[3,1.5]O?}//
\chemfig{O?-[5,1.5](-[2,0.75]H)(-[6,1]OH)<[7,1.5](-[2,0.75]H)(-[6,0.75]OH)-[,1.75,,,line width=2.6pt](-[2,1]OH)(-[6,0.75]H)>[1,1.5](-[2,0.75]H)(-[6,0.75]OH)-[3,1.5]?(-[6,0.5]H)(-[2,0.75,,1]CH_2-[,1.1]OH)}//
\chemfig{O?-[5,1.5](-[2,1]OH)(-[6,0.75]H)<[7,1.5](-[2,0.75]H)(-[6,0.75]OH)-[,1.75,,,line width=2.6pt](-[2,1]OH)(-[6,0.75]H)>[1,1.5](-[2,0.75]H)(-[6,0.75]OH)-[3,1.5]?(-[6,0.5]H)(-[2,0.75,,1]CH_2-[,1.1]OH)}//
\chemfig{?(-[2,0.75]OH)(-[6,0.75]H)-[5,1.5](-[2,1]OH)(-[6,0.75]H)<[7,1.5](-[2,0.75]H)(-[6,0.75]OH)-[,1.75,,,line width=2.6pt](-[2,1]OH)(-[6,0.75]H)>[1,1.5]O-[3,1.5]?(-[6,0.55]H)(-[2,0.75]CH_2-[,1.1]OH)}}


\end{document}