preferred_name: valacyclovir + H2O <=> acyclovir + L-valine + H(+)
preferred_name_lc: valacyclovir + h2o <=> acyclovir + l-valine + h(+)
label: valacyclovir + H2O <=> acyclovir + L-valine + H(+)
label_lc: valacyclovir + h2o <=> acyclovir + l-valine + h(+)