4-bromo-4'-demethylepipodophyllotoxin derivatives Grant US-5061791-A United States of America 29 Oct 1991
DIHYDRATE CRYSTALS OF ETOPOSIDE-2-DIMETHYLAMINO COMPOUND HYDROCHLORIDE AND A PROCESS FOR… Application EP-0369369-A3 European Patent Office 22 Aug 1990
Dihydrate crystals of etoposide-2-dimethylamino compound hydrochloride and a process for… Application EP-0369369-A2 European Patent Office 23 May 1990