Humans Naphthoquinones article drug synthesis unclassified drug 1,4 naphthoquinone derivative Antineoplastic Agents Cell Line, Tumor Cell Proliferation Drug Screening Assays, Antitumor Naphthoquinone Structure-Activity Relationship antineoplastic agent antiproliferative activity cancer cell culture chemistry cyclization human human cell structure activity relation 2 hydroxy 5 methoxy 3 (3 methylbut 2 enyl)naphthalene 1,4 dione (5 methoxylapachol) 2 hydroxy 7 methoxynaphthalene 1,4 dione (2 hydroxy 7 methoxy 1,4 naphthoquinone 2,3 dihydro 5 hydroxy 2 (prop 1 en 2 yl)naphtho[2,3 b]furan 4,9 dione 2,5 dihydroxy 3 (3 methylbut 2 enyl)naphthalene 1,4 dione 3 hydroxy 6 methoxy 2 (3 methylbut 2 en 1 yl)naphthalene 1,4 dione (7 methoxylapachol) 3,4 dihydro 10 hydroxy 2,2 dimethyl 2h benzo[g]chromene 5,6 dione (10 hydroxy beta lapachone) 3,4 dihydro 10 methoxy 2,2 dimethyl 2h benzo[g]chromene 5,6 dione (10 methoxy beta lapachone) 3,4 dihydro 6 hydroxy 2,2 dimethyl 2h benzo[g]chromene 5,10 dione (6 hydroxy alpha lapachone) 3,4 dihydro 6 hydroxy 2,2 dimethyl 2h benzo[g]chromene 5,10 dione (6 methoxy alpha lapachone) 3,4 dihydro 7 hydroxy 2,2 dimethyl 2h benzo[g]chromene 5,6 dione (7 hydroxy beta lapachone)