10.6084/m9.figshare.5840844.v1 Changkuo Zhao Changkuo Zhao Xianheng Wang Xianheng Wang Fuhong Yang Fuhong Yang Lei Gao Lei Gao Yuhe Wang Yuhe Wang Supporting information from A simple route to a novel acid-sensitive 20(<i>S</i>)-<i>O</i>-linked camptothecin norcantharidin acid ester derivative The Royal Society 2018 camptothecin norcantharidin synthesis water solubility tumour 2018-01-31 10:01:44 Journal contribution https://rs.figshare.com/articles/journal_contribution/Supporting_information_from_A_simple_route_to_a_novel_acid-sensitive_20_i_S_i_-_i_O_i_-linked_camptothecin_norcantharidin_acid_ester_derivative/5840844 Spectrum for all synthesized compounds