Zobrazeno 1 - 10
of 21
pro vyhledávání: '"N. H. Quazi"'
Publikováno v:
Synthetic Communications. 33:4269-4277
A water-soluble oxonol dye containing a reactive hydroxysuccinimidyl ester suitable for reaction with biomolecules has been prepared. This fluorescent compound has 631 nm, eabs 147,000 M−1 cm−1, 659 nm, and quantum yield 0.30.
Autor:
Gregory M. Neumann, Leann Tilley, Joanne L. Casey, Andrew B. Hughes, Nectarios Klonis, Dean R. Hewish, N. H. Quazi, Huiqin Wang, Les W. Deady
Publikováno v:
Journal of Fluorescence. 11:1-11
The far red region of the spectrum is increasingly being utilised in many applications in the biosciences. However, apart from the cyanine group of dyes, there are relatively few far red fluorescent probes available which are of practical use. We hav
Publikováno v:
Synthetic Communications. 30:803-820
The synthesis of fluorescent 2,10-derivatives of the title chromophore are described. The substituents contain amino-reactive N-hydroxysuccinimde ester and thiol-reactive iodoacetamide groups for attachment to biomolecules. A phosphate derivative was
Publikováno v:
Biological Chemistry Hoppe-Seyler. 377:373-384
A large series of isoquinoline derivatives was synthesised including derivatives of isoquinoline, isoquinolino[3,4-c]furazan, 1,2-dihydro-1-oxoisoquinoline, 6-oxopyrimido[1,2-d]isoquinoline, benzo[c][1,8]-naphthyridine, pyrazino[2,3-c]isoquinoline an
Autor:
Leslie W. Deady, N. H. Quazi
Publikováno v:
Spectroscopy Letters. 28:1033-1040
The chemical shifts and multiplicities of the two bridgehead carbons in the 13C NMR spectra of various fused furoxans are snown to provide a general method for assigning structure in these tautomeric systems.
Autor:
Leslie W. Deady, N. H. Quazi
Publikováno v:
Synthetic Communications. 25:309-320
The product from the diacetylation of α-cyano-o-tolunitrile has now been assigned as an isocoumarin derivative. This is readily transformed into various 1-substituted-3-methylisoquinoline-4-carbonitriles by reaction with oxygen, nitrogen, carbon and
Autor:
N. H. Quazi, Leslie W. Deady
Publikováno v:
Journal of Heterocyclic Chemistry. 31:793-796
Reactions of the title compound with the malonic acid derivatives diethyl ethoxymethylenemalonate (EMME), ethyl ethoxymethylenecyanoacetate (EMCA) and ethoxymethylenemalononitrile (EMMN) are reported. Condensations occur at the amino group or C-4, de
Autor:
N. H. Quazi, Leslie W. Deady
Publikováno v:
ChemInform. 24
The reaction of some 4-nitroisoquinolin-3-amines with iodosobenzene diacetate [ PhI ( OAc )2] is a convenient preparation of the title compound N-oxides. Attempts to convert these into quinoxaline N,N′-dioxides were not successful, but reactions of
Autor:
Leslie W. Deady, N. H. Quazi
Publikováno v:
ChemInform. 24
1-Methylisoquinoline-3,4-diamine has been synthesized and condensed with α-dicarbonyl compounds to give the fused pyrazine ring. Oxidation of methyl groups gives the 3- and 6-carboxylic acids. Nitration occurs in the benzenoid ring to give the singl
Autor:
N. H. Quazi, Les W. Deady
Publikováno v:
ChemInform. 26