Results 21 to 30 of about 1,407 (189)

On the application of knoevenagel condensation for the synthesis of benzylidene benzothiazine compounds and structural study

Química Nova, 2006
The synthesis and physico-chemical properties of new 6-acetylamino or 6-benzoyl-amino 2-benzylidene-4-methyl-4H-benzo[1,4]thiazin-3-ones and 6-benzoylamino or 6-nitro 2-benzylidene-4H-benzo[1,4]thiazin-3-ones are described.
Ana Maria Alves de Souza, Vera Lucia de Miranda Guarda, Lúcia Fernanda Cavalcanti da Costa Leite, José Maria Barbosa Filho, Maria do Carmo Alves de Lima, Suely Lins Galdino, Ivan da Rocha Pitta   +6 more
doaj   +3 more sources

Novel applications of the "t-amino effect" in heterocyclic chemistry. Synthesis of a pyrrolo[1,2-a]quinazoline and 5H-pyrrolo[1,2-a][3,1]benzothiazines [PDF]

, 1984
1-(1-Pyrrolidinyl)benzenes substituted with an imino- or an in situ generated thiocarbonyl group in the 2-position rearrange upon heating to quinazoline and benzothiazine derivatives ...
Hamzink, M.R.J., Reinhoudt, D.N., Verboom, W., Visser, R.   +3 more
core   +3 more sources

(R)-(−)-2-[(5-Oxido-5-phenyl-5λ4-isoquino[4,3-c][2,1]benzothiazin-12-yl)amino]benzonitrile

Molbank, 2014
Copper-catalyzed cross-coupling between (S)-S-methyl-S-phenylsulfoximine (1) and 2-iodobenzonitrile (2) resulted in the discovery of an unprecedented one-pot triple arylation sequence to give (R)-(−)-2-[(5-oxido-5-phenyl-5λ4-isoquino[4,3-c][2,1 ...
Marcus Frings, Iuliana Atodiresei, Carsten Bolm   +2 more
doaj   +1 more source

Synthesis and bioassay of azolyl benzothiazine carboxamides [PDF]

AIP Conference Proceedings, 2020
Cyclic sulfonamides (sultams) gained importance due to their potential pharmaceutical activity. Amongst these, 1,2-benzothiazine-1,1-dioxide and their derivatives represent the most familiar class of non-steroidal anti- inflammatory drugs (NSAIDs) available in the market.
Siva Sankar, P., Sravya, G., Rajeswari, T., Padmavathi, V.   +3 more
openaire   +3 more sources

Bird Integumentary Melanins: Biosynthesis, Forms, Function and Evolution [PDF]

, 2016
Melanins are the ubiquitous pigments distributed in nature. They are one of the main pigments responsible for colors in living cells. Birds are among the most diverse animals regarding melanin-based coloration, especially in the plumage, although they ...
Agrup, Aroca, Bonser, Bortolotti, Brumbaugh, Carr, Chiaverini, Chintala, Colleary, Cott, Darwin, Domyan, D’Ischia, Francisco Solano, García-Borrón, Grande, Ismael Galván, Ito, Jimbow, Jiménez-Cervantes, Kerje, Lin, Liu, Mason, McGraw, McGraw, McGraw, Napolitano, Prota, Prum, Raper, Rorsman, Sato, Searcy, Solano, Straniero, Sultana, Tarafder, Van Grouw, Vinther, Wogelius   +40 more
core   +2 more sources

Synthesis of Some New 2-Methyl -1,4-benzothiazine-3(1H)- one Derivatives as Potential Vasodilators

E-Journal of Chemistry, 2004
The increase in the internal diameter of a blood vessel that results from relaxation of smooth muscle within the wall of the vessel is vasodilation. This causes an increase in blood flow and a decrease in systemic vascular resistance.
M. B. Deshmukh, A. R. Mulik, Savita Dhongade-Desai   +2 more
doaj   +1 more source

Methyl 2-(benzenesulfonamido)acetate

Acta Crystallographica Section E, 2009
The title compound, C9H11NO4S, is of interest as a precursor to biologically active benzothiazines. The crystal structure is stabilized by intermolecular N—H...O and C—H...O interactions.
Muhammad Nadeem Arshad, Islam Ullah Khan, Muhammad Zia-ur-Rehman, Muhammad Shafiq   +3 more
doaj   +1 more source

Synthesis of quinazolino‐1,3‐benzothiazine derivatives

Journal of Heterocyclic Chemistry, 1992
AbstractThe ring‐closure reactions of N‐(3,4‐dimethoxyphenylthiomethyl)‐2‐nitrobenzamide derivatives 5a,b with phosphoryl chloride gave 4‐(2‐nitrophenyl)‐2H1,3‐benzothiazine derivatives 7a,b, which on reduction yielded 4‐(2′‐aminophenyl)‐3,4‐dihydro‐2H‐1,3‐benzothiazines 8a,b.
Szabó János, Bani-Akoto Ernest, Dombi György, Bernáth Gábor, Fodor Lajos, Sohár Pál   +5 more
openaire   +2 more sources

Synthesis and Oligonucleotide Incorporation of Fluorescent Cytosine Analogue tC: a Promising Nucleic Acid Probe [PDF]

, 2007
The tricyclic cytosine, tC, is a fluorescent base analogue with excellent properties for investigating intrinsic characteristics of nucleic acid as well as interactions between nucleic acids and other molecules.
A Holmén, A Okamoto, B Roth, B Roth, BW Allan, CR Guest, DA Berry, DC Ward, JN Wilson, JT Stivers, JT Stivers, KC Engman, KY Lin, L Marcus Wilhelmsson, LB Bloom, LM Wilhelmsson, LM Wilhelmsson, ME Hawkins, ME Hawkins, ME Hawkins, ME Hawkins, MJ Rist, P Sandin, Per Lincoln, Peter Sandin, PO Lycksell, RA Hochstrasser, SL Driscoll, T Brown, T Brown, Tom Brown, V Rolland, Z Kazimierczuk   +32 more
core   +1 more source

Methyl (4-bromobenzenesulfonamido)acetate

Acta Crystallographica Section E, 2008
The title compound, C9H10BrNO4S, is an intermediate for the formation of benzothiazines. In the crystal structure, intermolecular N—H...O hydrogen bonds link the molecules, forming R22(10) ring motifs, which are linked into a two-dimensional ...
Muhammad Shafiq, Ejaz Ahmad, Islam Ullah Khan, M. Nawaz Tahir, Muhammad Nadeem Arshad   +4 more
doaj   +1 more source