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20-Desethyl-20-methyl-10-hydroxy-7-ethylcamptothecin
20-Desethyl-20-methyl-10-hydroxy-7-ethylcamptothecin
20-Desethyl-20-methyl-10-hydroxy-7-ethylcamptothecin
20-Desethyl-20-methyl-10-hydroxy-7-ethylcamptothecin
20-Desethyl-20-methyl-10-hydroxy-7-ethylcamptothecin
20-Desethyl-20-methyl-10-hydroxy-7-ethylcamptothecin