描述
不需要酶
[[四氢叶酸（THF）]]+[[甲醛（formaldehyde）]]->[[N5,N10-亚甲基四氢叶酸（5,10-methylene-THF）]]
$化学方程式：$
-
\usepackage{chemfig}
\begin{document}
\chemfig{
THF
}
+
\chemfig{
CH_2O
}
\begin{tikzpicture}
\draw [->] (0,0) to node[above] {} (1,0);
\end{tikzpicture}
$
CH_2=FH_4
$
+$
\end{document}-
\usepackage{chemfig}
\begin{document}
\chemfig{
N(-[4,0.3]H)-[7,0.8](-[6,0.6]NH_2)=[,0.8]N-[1,0.8](=[,0.6]O)-[3,0.8]
(-[1,0.8]N(-[,0.3]H)(-[4,0.3]5)-[3,0.8]
(-[2,0.6]CH_2-[2,0.6]
NH(-[4,0.3]10)-[2,0.6]**6(
-
-
-(-[,0.6]C
(=[4,0.7]O)
(-[2,0.7]
NH-[2,0.6]CH
(-[4,0.6]HOOC)
(-[2,0.6]CH_2
(-[2,0.6]CH_2
(-[2,0.6]COOH)
)
)
)
)
-
-
-
)
)
-[4,0.8]-[5,0.8]N(-[4,0.3]H)-[7,0.8])
=[4,0.8]-[5,0.6]
}
+
\chemfig{
(=[2,0.5]O)
(-[4.5,0.5]H)
(-[7.5,0.5]H)
}
\begin{tikzpicture}
\draw [->] (0,0) to node[above] {} (1,0);
\end{tikzpicture}
\chemfig{
N(-[4,0.3]H)-[7,0.8](-[6,0.6]NH_2)=[,0.8]N-[1,0.8](=[,0.6]O)-[3,0.8]
(-[1,0.8]N(-[1.4,1])(-[4,0.3]5)-[3,0.8]
(-[2,0.6]CH_2-[2,0.6]
N(-[4,0.3]10)(-[7.3,1.3]CH_2)(-[4,0.3]10)-[2,0.6]**6(
-
-
-(-[,0.6]C
(=[4,0.7]O)
(-[2,0.7]
NH-[2,0.6]CH
(-[4,0.6]HOOC)
(-[2,0.6]CH_2
(-[2,0.6]CH_2
(-[2,0.6]COOH)
)
)
)
)
-
-
-
)
)
-[4,0.8]-[5,0.8]N(-[4,0.3]H)-[7,0.8])
=[4,0.8]-[5,0.6]
}
+$
\end{document}