申请人:FEMTOGENIX LIMITED
公开号:US20190144443A1
公开(公告)日:2019-05-16
The invention relates to compound of formula (I):
A-X
1
-L-X
2
—B (I)
and salts, solvates and tautomers thereof, which are useful as medicaments, in particular as anti-proliferative agents and for use as a drug in an antibody-drug conjugate; wherein A is a group selected from:
X
1
and X
2
are independently selected from O, S, NR
28
, CR
28
R
29
, CR
28
R
29
O, C(═O), C(═O)NR
28
, NR
28
C(═O), C(O)—R
A
—C(O)—NH, C(O)—R
A
—NH—C(O), C(O)—NH—R
A
—C(O), NH—C(O)—R
A
—C(O), NH—C(O)—R
A
—C(O)—NH, NH—C(O)—R
A
—NH—C(O), C(O)—NH—R
A
—NH—C(O), C(O)—NH—R
A
—C(O)—NH, O—C(O) and C(O)—O or is absent;
L is selected from an amino acid, a peptide chain having from 2 to 12 amino acids, a paraformaldehyde chain —(OCH
2
)
1-24
—, a polyethylene glycol chain —(OCH
2
CH
2
)
1-12
— and —(CH
2
)
m
—Y
6
—(CH
2
)
n
— wherein Y
6
is selected from —(CH
2
)
z
— and a group (L1) a group (L1) that is selected from arylene, monocyclic heteroarylene, monocyclic cycloalkylene, monocyclic cycloalkenylene and monocyclic heterocyclylene groups optionally substituted with up to three optional substituent groups; and
B is a polycyclic group selected from: