Lets say I have a pharmaceutical "P". It can be broken down by enzymes of one strain of bacteria into two molecules one of which can be further metabolized enzymatically by a different strain of bacteria. Both strains as a result can decompose "P" to the simplest metabolites.
Could one hope to reverse the reaction using the same enzymes and have the two bacteria produce "P" from basic nutrients and if so, how would the conditions have to be altered? Or perhaps would it be possible ex vivo?