\frac{dx_{1}}{dt} = 1 \cdot \left(k_{7} \cdot \left(k_{2} \cdot x_{26} + x_{27} + k_{3} \cdot x_{28}\right) - x_{1}\right) / k_{51}\\
\frac{dx_{2}}{dt} = 1 \cdot \left(1 / k_{1} \cdot \left(k_{10} \cdot x_{1} - k_{17} \cdot x_{2} \cdot x_{3} + k_{18} \cdot x_{4}\right) + k_{16} \cdot \left(k_{20} \cdot x_{6} - k_{19} \cdot x_{2} \cdot x_{14}\right)\right) / k_{51}\\
\frac{dx_{3}}{dt} = 1 \cdot 1 / k_{1} \cdot \left(k_{21} \cdot x_{8} \cdot x_{13} - k_{22} \cdot x_{3} + \left(k_{18} + 1\right) \cdot x_{4} - k_{17} \cdot x_{3} \cdot x_{2}\right) / k_{51}\\
\frac{dx_{4}}{dt} = 1 \cdot 1 / k_{1} \cdot \left(k_{17} \cdot x_{2} \cdot x_{3} - \left(k_{18} + 1\right) \cdot x_{4}\right) / k_{51}\\
\frac{dx_{5}}{dt} = 1 \cdot 1 / k_{1} \cdot \left(x_{4} - k_{14} \cdot x_{5}\right) / k_{51}\\
\frac{dx_{6}}{dt} = 1 \cdot \left(k_{19} \cdot x_{14} \cdot x_{2} - k_{20} \cdot x_{6}\right) / k_{51}\\
\frac{dx_{7}}{dt} = 1 \cdot \left(k_{23} \cdot x_{14}^{2} - k_{24} \cdot x_{7}\right) / k_{51}\\
\frac{dx_{8}}{dt} = 1 \cdot \left(k_{13} \cdot \left(k_{4} - x_{8}\right) - 1 / k_{1} \cdot k_{15} \cdot \left(k_{21} \cdot x_{8} \cdot x_{13} - k_{22} \cdot x_{3}\right)\right) / k_{51}\\
\frac{dx_{9}}{dt} = 1 \cdot \left(k_{9} \cdot \left(k_{2} \cdot x_{30} + x_{31}\right) - x_{9}\right) / k_{51}\\
\frac{dx_{10}}{dt} = 1 \cdot 1 / k_{1} \cdot \left(k_{12} \cdot x_{9} - x_{10}\right) / k_{51}\\
\frac{dx_{11}}{dt} = 1 \cdot \left(k_{8} \cdot \left(k_{2} \cdot x_{30} + x_{31}\right) - x_{11}\right) / k_{51}\\
\frac{dx_{12}}{dt} = 1 \cdot 1 / k_{1} \cdot \left(k_{11} \cdot x_{11} - x_{12}\right) / k_{51}\\
\frac{dx_{15}}{dt} = 1 \cdot \left(k_{36} \cdot x_{29} - x_{15}\right) / k_{51}\\
\frac{dx_{16}}{dt} = 1 \cdot 1 / k_{1} \cdot \left(k_{38} \cdot x_{15} - x_{16}\right) / k_{51}\\
\frac{dx_{17}}{dt} = 1 \cdot 1 / k_{1} \cdot \left(k_{44} \cdot x_{24} - k_{43} \cdot x_{17} \cdot x_{18}\right) / k_{51}\\
\frac{dx_{18}}{dt} = 1 \cdot \left(k_{40} \cdot \left(k_{32} - x_{18}\right) - k_{42} / k_{1} \cdot \left(k_{43} \cdot x_{17} \cdot x_{18} - k_{44} \cdot x_{24}\right)\right) / k_{51}\\
\frac{dx_{19}}{dt} = 1 \cdot 1 / k_{1} \cdot \left(k_{45} \cdot x_{24} \cdot x_{23} - k_{46} \cdot x_{25} \cdot x_{19}\right) / k_{51}\\
\frac{dx_{20}}{dt} = 1 \cdot 1 / k_{1} \cdot \left(k_{47} \cdot x_{24} \cdot x_{22} - k_{48} \cdot x_{25} \cdot x_{20}\right) / k_{51}\\
\frac{dx_{21}}{dt} = 1 \cdot \left(k_{37} \cdot x_{32} - x_{21}\right) / k_{51}\\
\frac{dx_{22}}{dt} = 1 \cdot 1 / k_{1} \cdot \left(k_{39} \cdot x_{21} - x_{22} + k_{41} \cdot \left(k_{48} \cdot x_{25} \cdot x_{20} - k_{47} \cdot x_{24} \cdot x_{22}\right)\right) / k_{51}