864076-04-0Relevant articles and documents
New Broad-Spectrum Antibiotics Containing a Pyrrolobenzodiazepine Ring with Activity against Multidrug-Resistant Gram-Negative Bacteria
Picconi, Pietro,Hind, Charlotte K.,Nahar, Kazi S.,Jamshidi, Shirin,Di Maggio, Lucia,Saeed, Naima,Evans, Bonnie,Solomons, Jessica,Wand, Matthew E.,Sutton, J. Mark,Rahman, Khondaker Miraz
, p. 6941 - 6958 (2020/08/14)
It is urgent to find new antibiotic classes with activity against multidrug-resistant (MDR) Gram-negative pathogens as the pipeline of antibiotics is essentially empty. Modified pyrrolobenzodiazepines with a C8-linked aliphatic heterocycle provide a new class of broad-spectrum antibacterial agents with activity against MDR Gram-negative bacteria, including WHO priority pathogens. The structure-activity relationship established that the third ring was particularly important for Gram-negative activity. Minimum inhibitory concentrations for the lead compounds ranged from 0.125 to 2 mg/L for MDR Gram-negative, excluding Pseudomonas aeruginosa, and between 0.03 and 1 mg/L for MDR Gram-positive species. The lead compounds were rapidly bactericidal with >5 log reduction in viable count within 4 h for Acinetobacter baumannii and Klebsiella pneumoniae. The lead compound inhibited DNA gyrase in gel-based assays, with an IC50 of 3.16 ± 1.36 mg/L. This study provides a new chemical scaffold for developing novel broad-spectrum antibiotics which can help replenish the pipeline of antibiotics.
POLYCYCLIC AMIDES AS CYTOTOXIC AGENTS
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Page/Page column 170, (2020/03/29)
The invention relates to a compound of formula (I): or pharmaceutically acceptable salts, solvates, tautomers, stereoisomers or mixtures thereof; wherein the fused ring moiety is a non-alkylating moiety; and wherein the compounds are useful as medicaments, in particular for use as a drug in an antibody-drug conjugate and in the treatment of a proliferative disease, a bacterial infection, a malarial infection and inflammation.
PIPERIDINOBENZODIAZEPINE COMPOUNDS WITH ANTI PROLIFERATIVE ACTIVITY
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Page/Page column 64; 65, (2017/03/14)
The invention relates to pyrridinobenzodiazepines (PDDs) comprising three fused 6-7-6-membered rings linked to aromatic groups, and pharmaceutically acceptable salts thereof, which are useful as medicaments, such as anti-proliferative agents. PDDs may be represented by formula (I): and salts and solvates thereof, wherein the dotted lines indicates the optional presence of a double bond between one or more of Ci and C2, C2and C3, and C3and C4; R1 and R2 are substituent groups; R3 is selected from H, C1-12 alkyl and CH2Ph; R4is selected from phenyl and C5-9heteroaryl groups optionally substituted, with the proviso that the optionally substituted C5-9heteroaryl is not indolyl; R19is selected from H and (CH2)t-NR20R21; Yiis N or CH; Y2 is N or CH; and wherein at least one of Y1and Y2 is CH; p is o or1; X1 is a connecting group; L is a linker group; X2 is a connecting group or is absent; q is selected from o,1, 2, 3,4,5and 6; A is selected from: for each Ai group one of Y3and Y4is selected from N-R17,S and O; and the other of Y3and Y4is CH; and Y5is selected from CH, N, S and COH; for each A2group one of Y6and Y7is independently selected from N and CH; and the other of Y6and Y7is CH; R13, R14, R17, R2oand R2iare independently selected from H and C1-6alkyl; and either: (i) R5and R6together form a double bond; (ii) R5is H and R6is OH; or (iii) R5is H and R6is OC1-6alkyl; with the proviso that when p is o and A is Ai, then: (a) for at least one Ai group one of Y3and Y4is selected from S and O; or (b) for at least one Ai group Y5is S; or (c) R4is not pyrrolyl, imidazolyl, optionally substituted pyrrolyl or optionally substituted imidazolyl.
PDD AND BPD COMPOUNDS
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Page/Page column 112; 113, (2016/12/26)
The invention relates to pyrridinobenzodiazepines (PDDs) comprising three fused 6-7- 6–membered rings and to benzopyrridodiazecines (BPDs) comprising three fused 6-8- 6–membered rings and, in particular, to PDD or BPD dimers linked together or PDD and BPD monomers linked to aromatic groups, and pharmaceutically acceptable salts thereof, which are useful as medicaments, such as anti-proliferative agents. PDDs and BPDs may be represented by formula (I): and salts or solvates thereof, wherein R2, R4-R6 and R8 are independently selected substituent groups; and either: (i) R9 and R10 together form a double bond; (ii) R9 is H and R10 is OH; or (iii) R9 is H and R10 is ORA and RA is C1-6 alkyl; wherein each of m, n, u and w may be 0 or 1; where (a) the compound is a dimer with each monomer being the same or different and being of formula (I) where one of R1, R2, R3 and R7 of the first monomer and one of R'1, R'2, R3 and R'7 of the second monomer form together a bridge having the formula –X-L-X'- linking the monomers and m + n + u + w = 1; or (b) a dimer and one of R1, R2 and R3 of the first monomer and one of R'1, R'2 and R3 of the second monomer form together a bridge having the formula –X-L-X'- linking the monomers and m = n = u = w = o; or (c) one of R1, R2, R3 and R7 has the formula: –X- L-X'-D or -(CH2)f-O-R14 and m + n + u + w = o or 1; or (d) R7 has the formula: –X-L-X'- D or -(CH2)g-O -15 and m + n + u + w = 1; and X-L-X'- is a linker group and D has the formula (II) or (III):
PYRROLOBENZODIAZEPINE COMPOUNDS
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Page/Page column 79, (2015/11/24)
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 the
GC-Targeted C8-linked pyrrolobenzodiazepine-biaryl conjugates with femtomolar in vitro cytotoxicity and in vivo antitumor activity in mouse models
Rahman, Khondaker M.,Jackson, Paul J. M.,James, Colin H.,Basu, B. Piku,Hartley, John A.,De La Fuente, Maria,Schatzlein, Andreas,Robson, Mathew,Pedley, R. Barbara,Pepper, Chris,Fox, Keith R.,Howard, Philip W.,Thurston, David E.
, p. 2911 - 2935 (2013/05/23)
DNA binding 4-(1-methyl-1H-pyrrol-3-yl)benzenamine (MPB) building blocks have been developed that span two DNA base pairs with a strong preference for GC-rich DNA. They have been conjugated to a pyrrolo[2,1-c][1,4]benzodiazepine (PBD) molecule to produce
PYRROLOBENZODIAZEPINES
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, (2013/11/19)
A compound of formula (I) or a salt or solvate thereof, wherein the dotted double bond indicates the presence of a single or double bond between C2 and C3; R2 is selected from -H, -OH, =O, =CH2, -CN, -R, OR, halo, dihalo, =CHR, =CHRR', -O- SO2-R, CO2R and COR; R7 is selected from H, R, OH, OR, SH, SR, NH2, NHR, NRR', nitro, Me3Sn and halo; where R and R' are independently selected from optionally substituted C1-7 alkyl, C3-20 heterocyclyl and C5-20 aryl groups; R10 and R11 either together form a double bond, or are selected from H and QRQ respectively, where Q is selected from O, S and NH and RQ is H or C1-7 alkyl or H and SOxM, where x is 2 or 3, and M is a monovalent pharmaceutically acceptable cation; A is selected from (A1), (A2), (A3), (A4) or (A5) where X1 and Y1 are selected from: CH and NH; CH and NMe; N and NMe; CH and S; N and S; N and O; and CH and O, respectively; X2 and Y2 are selected from: CH and NH; CH and NMe; N and NMe; CH and S; N and S; N and O; and CH and O, respectively; Z1 is selected from O and S; Z2 is selected from CH and N; F is selected from a single bond and –(E-F1)m-; each E is independently selected from a single bond, and –C(=O)-NH-; each F1 is independently a C3-20 heteroarylene group; m is 1, 2 or 3; G is selected from hydrogen, C1-4alkyl, -C(=O)-O-C1-4alkyl, -(CH2)n-C3-20 heterocycloalkyl, and –O-(CH2)n-C3-20 heterocycloalkyl group; each n is 0-4; provided that A2 is not A2', where X1 and Y1 of A2' are selected from: CH and NMe; COH and NMe; CH and S; N and NMe; N and S, respectively; and provided that A3 is not A3', where X2 and Y2 of A3' are selected from: CH and NMe; COH and NMe; CH and S; N and NMe; N and S, respectively; B is either a single bond or (B1), where X and Y of B1 are selected from: CH and NMe; COH and NMe; CH and S; N and NMe; N and S, respectively; and R1 is C1-4 alkyl.
PYRROLOBENZODIAZEPINES
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, (2013/11/19)
Pyrrolobenzodiazepine (PBDs) having a (1-methyl-1H-pyrrol-3- yl)phenyl based amino residue were found to be highly effective compounds having improved cytotoxicity ad DNA binding properties.
