LF2_EDIT provides interface to Daylight molecular modification functions (reaction toolkit provides more natural way to do this)
Define substructure be converted as SMARTS; complex atom types defined in optional vector binding file
Keywords direct editing: HYD (add hydrogen), PRT (add proton), CHG (set charge), BND (set bond order)
These examples illustrate how editing instructions are specified:
Convert ylid nitro to neutral
Convert 2-hydroxypyridines to 2-pyridones