1304788-26-8Relevant articles and documents
The solvolysis of topotecan in alcohols and acetic anhydride
Li, Jiajun,Wang, Guolin,Dong, Mengjie,Zhang, Qian
, p. 2324 - 2326 (2011)
Six derivatives of 10-hydroxycamptothecin were prepared via solvolysis of topotecan in corresponding alcohols and acetic anhydride. We attributed the specific reactivity of topotecan to the internal hydrogen-bonding between 10-hydroxy and the nitrogen atom in position 9. As a result the reaction underwent through an intermediate ortho-quionomethlide species to reach equilibrium. Bioactivity screening data showed all products could potentially inhibit the proliferation of several cancer cell lines in vitro and a bigger size group in 9-position would be favorable for the anti-tumor activities observably.