Patent Number: 6,310,207

Title: Process of preparing camptothecin derivatives

Abstract: A process of preparing camptothecin derivatives of formula 1 is disclosed ##STR1##

Inventors: Il; Hong Chung (East Amherst, NY), Kim; Jung Woo (Seoul, KR), Lee; Sang Joon (Kunpo, KR), Ahn; Soon Kil (Seoul, KR), Choi; Nam Song (Seoul, KR), Kim; Kye Kwang (Siheung, KR), Jeong; Byeong Seon (Seoul, KR)

Assignee: Chong Kun Dang Corp.

International Classification: C07D 491/22 (20060101); C07D 491/00 (20060101); C07D 487/14 (); C07D 487/22 ()

Expiration Date: 10/30/2018