HIGH PURITY N-(4-[N,N-BIS(2-IODOETHYL)AMINO]PHENOXYCARBONYL)-L-GLUTAMIC ACID

摘要

PCT No. PCT/GB95/02997 Sec. 371 Date Jun. 23, 1997 Sec. 102(e) Date Jun. 23, 1997 PCT Filed Dec. 21, 1995 PCT Pub. No. WO96/20169 PCT Pub. Date Jul. 4, 1996A new salt of a prodrug useful in antibody directed enzyme prodrug therapy (ADEPT) is disclosed. A hydrogen iodide salt of the prodrug N-(4-[N,N-bis(2-iodoethyl)amino]phenoxycarbonyl)-L-glutamic acid is prepared which can be obtained in crystalline form. Preparation of the crystalline form of the prodrug enables preparation of the prodrug in highly pure form.