Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Brent S. Lindsay"'
Publikováno v:
Tetrahedron. 56:497-505
The cytotoxic marine alkaloid ascididemin and various pyridine ring-E analogues have been synthesised in an attempt to determine the pharmaceutical utility and structure-activity requirements for the parent alkaloid. All compounds synthesised were ev
Autor:
David Ross Appleton, Brent R. Copp, Richard P. Hansen, Christopher J. Squire, George R. Clark, Brent S. Lindsay, Cliff E. F. Rickard
Publikováno v:
Synthetic Communications. 29:2665-2676
4-ethylthio- and 4-(4″-methylphenylthio)benzo[de][3,6]phenanthrolin-6(6H)-one have been synthesised in 4 steps from benzoquinone and then readily converted to the 4-amino (6d) and 4-methoxy (6c) analogues by nucleophilic substitution. Further elabo
Publikováno v:
Journal of Chemical Crystallography. 28:645-648
2-Bromoleptoclinidinone methanol solvate, C18H8BrN3O·CH4O, crystallizes in the orthorhombic space group Pbca with a = 15.7013(2), b = 7.3308(1), and c = 26.9326(1) A. The molecule is essentially planar, with the largest deviations occurring at bromi
Publikováno v:
Synthetic Communications. 27:2587-2592
Conversion of tetracyclic quinone 1 to the cytotoxic pentacyclic alkaloid ascididemin (2) in 80% yield is achieved by reaction with paraformaldehyde and ammonium chloride in refluxing acetic acid. High yielding annelations are aiso observed for the r
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 5:739-742
Comparison of the biological activities observed for ascididemin (2) and synthetic precursors/analogs has established the importance of N-8 in ring A, and a completed ring E, to topoisomerase II enzyme inhibition, human tumor cytotoxicity and antifun
Autor:
Elaine S. Marshall, Hamish S. Sutherland, William A. Denny, Philip Kestell, Emma Richardson, Debra Greenhalgh, Catherine A. Gilchrist, Bruce C. Baguley, Angela Ding, In Young Hwang, Brent S. Lindsay, Wayne R. Joseph
Publikováno v:
Investigational new drugs. 30(5)
Purpose The human tumour suppressor protein p53 is mutated in nearly half of human tumours and most mutant proteins have single amino acid changes. Several drugs including the quinazoline derivative 1 (CP-31398) have been reported to restore p53 acti
Publikováno v:
ChemInform. 28
Conversion of tetracyclic quinone 1 to the cytotoxic pentacyclic alkaloid ascididemin (2) in 80% yield is achieved by reaction with paraformaldehyde and ammonium chloride in refluxing acetic acid. High yielding annelations are aiso observed for the r
Autor:
Richard P. Hansen, George R. Clark, Brent R. Copp, Brent S. Lindsay, Cliff E. F. Rickard, David Ross Appleton, Christopher J. Squire
Publikováno v:
ChemInform. 30
4-ethylthio- and 4-(4″-methylphenylthio)benzo[de][3,6]phenanthrolin-6(6H)-one have been synthesised in 4 steps from benzoquinone and then readily converted to the 4-amino (6d) and 4-methoxy (6c) analogues by nucleophilic substitution. Further elabo
Publikováno v:
ChemInform. 31
The title molecule, C17H10N2O2, is a synthetic precursor to the cytotoxic marine alkaloid ascididemin and is also structurally related to cleistopholine, a plant-derived antifungal agent. The molecule was found to be essentially planar with the only
Publikováno v:
ChemInform. 31
The cytotoxic marine alkaloid ascididemin and various pyridine ring-E analogues have been synthesised in an attempt to determine the pharmaceutical utility and structure-activity requirements for the parent alkaloid. All compounds synthesised were ev