19326
We report a novel synthetic strategy of polymer - drug conjugates for nanoparticulate drug delivery : hydroxyl - containing drug ( e . g . , camptothecin , paclitaxel , doxorubicin and docetaxel ) can initiate controlled polymerization of phenyl O - carboxyanhydride ( Phe - OCA ) to afford drug - poly ( Phe - OCA ) conjugated nanoparticles , termed drug - PheLA nanoconjugates ( NCs ) .
 hydroxyl, camptothecin, paclitaxel, doxorubicin, docetaxel, phenyl O - carboxyanhydride, Phe - OCA, Phe - OCA, PheLA
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 hydroxyl, camptothecin, paclitaxel, doxorubicin, docetaxel, phenyl O - carboxyanhydride, Phe - OCA, Phe - OCA, PheLA