3.5.1.79 synthesis alternative chemical route in removing the phthalimido protecting group 3.5.1.79 synthesis selective deprotection of phthalyl protected amines 3.5.1.79 synthesis the enzyme catalyzes removal of the phthalyl group from a wide variety of phthalyl-containing compounds with improved yields over processes, exhibits stereochemical selectivity, and eliminates the need for harsh conditions to remove the protecting group 3.5.1.79 synthesis one-step synthesis of the antibiotic loracarbef 3.5.1.79 synthesis synthesis of aspartame