Copper-free Sonogashira reaction using 7-chloro camptothecins

Tetrahedron

Volumn 62, Issue 11, 2006, Pages 2465-2470

  Luo, Yu ^a   Gao, Heyong ^a   Li, Yunfei ^a   Huang, Weigang ^a   Lu, Wei ^b   Zhang, Zhaoguo ^c  

^a SHANGHAI INSTITUTE OF MATERIA MEDICA   (China)

^b EAST CHINA NORMAL UNIVERSITY   (China)

^c SHANGHAI JIAO TONG UNIVERSITY   (China)

Author keywords

Camptothecin; Catalysis; Palladium; Sonogashira coupling; Topoisomerase I

Indexed keywords

7 ETHYL 10 HYDROXYCAMPTOTHECIN; CAMPTOTHECIN; COPPER; FUNCTIONAL GROUP; KARENITECIN;

ARTICLE; CATALYST; CHEMICAL REACTION; PRIORITY JOURNAL; SONOGASHIRA REACTION;

EID: 32644453360     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tet.2006.01.001     Document Type: Article

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37. 10-Acetoxyl-20-acetyl-7-chloro-camptothecin (12 ) was prepared in three steps from 10-hydroxyl-camptothecin in 50% yield by a process similarly with the preparation of 20-acetyl-7-chloro-camptothecin (8 ).