Pyrrolobenzodiazepine compounds

US9999625B2 · kind B2 · utility

Assignee

• Femtogenix Limited · GB

Inventors

• David Edwin Thurston · Stapleford, GB
• Khondaker Mirazur Rahman · Welwyn Garden City, GB
• Paul J. Jackson · London, GB

Key dates

• Filing date: May 1, 2015
• Grant date: Jun 19, 2018
• Expiry date: May 1, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D487/04
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to pyrrolo[2,1-c][1,4]benzodiazepines (PBDs) of formula (I) and in particular to PBD dimers linked through the C1 position, and PBD monomers linked through the C1 position to aromatic groups, and pharmaceutically acceptable salts thereof, which are useful as medicaments, in particular as anti-proliferative agents. (I) and salts or solvates thereof, wherein: the dotted lines indicates the optional presence of a double bond between C1 and C2 or C2 and C3; R2-R7 are independently selected substituent groups; and either: (i) R8 and R9 together form a double bond; (ii) R8 is H and R9 is OH; or (iii) R8 is H and R9 is ORA and RA is C1-6 alkyl; where R1 has the formula: -X-L-X′-D-X-L-X′- is a linker group and D has the formula (II) or (III): or where the compound is a dimer with each monomer being the same or different and being of formula (I) where the R1 of the first monomer and R′1 or R′6 of the second monomer, or R6 of the first monomer and R′1 of the second monomer, form together a bridge having the formula -X-L-X′- linking the monomers.