175409-49-1Relevant academic research and scientific papers
Design, synthesis, and evaluation of new noncross-linking pyrrolobenzodiazepine dimers with efficient DNA binding ability and potent antitumor activity
Kamal, Ahmed,Ramesh,Laxman,Ramulu,Srinivas,Neelima,Kondapi, Anand K.,Sreenu,Nagarajaram
, p. 4679 - 4688 (2007/10/03)
New sequence selective mixed imine-amide pyrrolobenzodiazepine (PBD) dimers have been developed that are comprised of DC-81 and dilactam of DC-81 subunits tethered to their C8 positions through alkanedioxy linkers (comprised of three to five and eight car
Design and synthesis of C-8 linked pyrrolobenzodiazepine-naphthalimide hybrids as anti-tumour agents
Kamal, Ahmed,Reddy,Reddy, G.Suresh Kumar,Ramesh
, p. 1933 - 1935 (2007/10/03)
The facile synthesis of C-8 linked pyrrolobenzodiazepine-naphthalimide hybrid analogues is described. The compounds are prepared with varying degrees of linker length in order to probe the structural requirements for optimal in vitro anti-tumour activity. Some of these new hybrid compounds showed higher cytotoxic activity than the existing natural and synthetic pyrrolo[2,1-c][1,4]benzodiazepines.
Synthesis of novel non-cross-linking pyrrolobenzodiazepines with remarkable DNA binding affinity and potent antitumour activity
Kamal,Laxman,Ramesh,Neelima,Kondapi
, p. 437 - 438 (2007/10/03)
Mixed imine-amide pyrrolobenzodiazepine dimers have been prepared which exhibit potent antitumour activity and have significant DNA binding affinity; one of them, 1c, has been shown to cause a remarkable rise in the melting temperature of calf thymus DNA.
An efficient synthesis of pyrrolo[2,1-c][1,4]benzodiazepine antibiotics via reductive cyclization
Kamal, Ahmed,Reddy, B. S. Nararyan,Reddy, B. S. Praveen
, p. 1825 - 1828 (2007/10/03)
A new and convenient one-pot synthesis of pyrrolo[2,1-c][1,4]benzodiazepine (PBD) ring system has been achieved by a reductive cyclization employing N,N-dimethylhydrazine and FeCl3.6H2O in good yields.
Synthesis of pyrrolo[2,1-c][1,4]benzodiazepine antibiotics: Oxidation of cyclic secondary amine with TPAP
Kamal, Ahmed,Howard, Philip W.,Reddy, B.S. Narayan,Reddy, B.S. Praveen,Thurston, David E.
, p. 3223 - 3230 (2007/10/03)
A facile procedure for the preparation of the imine form of the pyrrolo(2,1-c][1,4]-benzodiazepine ring system by the oxidation of eyelid secondary amine with catalytic amounts of tetra-n-propylammonium perruthenate (TPAP) and N-methylmorpholine N-oxide (NMO) as a co-oxidant is described. This oxidative method is devoid of side-products and is thus a significant improvement over the Swern oxidation previously reported.
A new route for the synthesis of pyrrolo[2,1-c][1,4]benzodiazepine antibiotics via oxidation of cycle secondary amine
Kamal,Rao
, p. 385 - 386 (2007/10/03)
The synthesis of the imine-containing pyrrolo[2,1-c][1,4]benzodiazepine DNA-binding antitumour antibiotics was achieved by a new method of oxidation of cyclic secondary amines which does not endanger the stereochemical integrity of the C-11a position.
A new facile procedure for the preparation of pyrrolo[2,1-c][1,4]benzodiazepines : Synthesis of the antibiotic DC-81 and its thio analogue
Kamal, Ahmed,Reddy, B. S. Praveen,Reddy, B. S. Narayan
, p. 2281 - 2284 (2007/10/03)
An efficient synthesis of the imine form of the pyrrolo[2,1-c][1,4] benzodiazepine ring system based on a new reductive cyclization procedure is described. The naturally occuring antibiotic DC-81(5c) and its 5-thio analogue (7c) have also been synthesized to illustrate the usefulness of this methodology.
Synthesis of pyrrolo[2,1-c][1,4]benzodiazepine antibiotics via azido reductive cyclization with HMDST
Kamal, Ahmed,Reddy, B.S. Praveen,Reddy, B.S. Narayan
, p. 6803 - 6806 (2007/10/03)
A new facile synthesis of pyrrolo[2,1-c][1,4]benzodiazepine (PBD) ring system has been achieved by reductive cyclization of the azide employing hexamethyldisilathiane (HMDST). The parent unsubstituted PBD and the natural product DC-81 have also been prepared in good overall yields.
