Zobrazeno 1 - 10
of 19
pro vyhledávání: '"H. Howard Joyner"'
Autor:
Mark G. Saulnier, Steven M. Schreiber, and Gordon W. Gribble, Kerri L. Cavanaugh, H. Howard Joyner, Robert B. Perni
Publikováno v:
Arkivoc. 2021:15-23
Autor:
Denise L. MacMillan, Thomas W. Kensler, Thomas J. Curphey, B. D. Roebuck, Adam H. Libby, Yulia Y. Maxuitenko, H. Howard Joyner
Publikováno v:
Carcinogenesis. 19:1609-1615
Oltipraz and related dithiolethiones are an important class of chemopreventive agents. Studies were undertaken to identify cancer chemopreventive dithiolethiones more active than oltipraz. Largely based upon enzyme induction activities in vitro, 17 d
Autor:
Grace K. Zoorob, John W. Huffman, Patricia H. Reggio, H. Howard Joyner, W. Kenneth Banner, Billy R. Martin, David R. Compton
Publikováno v:
Tetrahedron. 51:1017-1032
Both C9 epimers of Δ7-THC (3 and 4) have been synthesized from Δ8-THC methyl ether (12). Hydroboration of 12 gave a mixture of stereoisomeric 8-hydroxyhexahydrocannabinols. The 8α-ol was converted into the 9β-methyl epimer (4) of Δ7-THC, while t
Autor:
Tory Prestera, Thomas J. Curphey, Adam H. Libby, Patricia A. Egner, Thomas W. Kensler, H. Howard Joyner, Paul Talalay
Publikováno v:
Carcinogenesis. 15:177-181
4-Methyl-5-pyrazinyl-3H-1,2-dithiole-3-thione (oltipraz) and several other dithiolethiones protect against the acute toxicities of many xenobiotics and are effective inhibitors of experimental carcinogenesis. These protective effects are mediated, in
Autor:
Thomas J. Curphey, H. Howard Joyner
Publikováno v:
Tetrahedron Letters. 34:7231-7234
Reaction of 3-oxo dithioic acids with a combination of hexamethyldisilathiane and N-chlorosuccinimide in the presence of a catalytic amount of imidazole brings about oxidative ring closure to 3H-1,2-dithiole-3-thiones. Yields vary from poor to good.
Autor:
Thomas J. Curphey, H. Howard Joyner
Publikováno v:
Tetrahedron Letters. 34:3703-3706
Exposure of 3-oxo dithioic acids to a solution of polysulfanes in liquid hydrogen sulfide gives 3H-1,2-dithiole-3-thiones in yields varying from poor to exellent. The method tolerates the precence of functional groups which are problematical for the
Publikováno v:
ChemInform. 22
Publikováno v:
ChemInform. 22
Publikováno v:
ChemInform. 23
Autor:
H. Howard Joyner, Thomas J. Curphey
Publikováno v:
ChemInform. 24
Exposure of 3-oxo dithioic acids to a solution of polysulfanes in liquid hydrogen sulfide gives 3H-1,2-dithiole-3-thiones in yields varying from poor to exellent. The method tolerates the precence of functional groups which are problematical for the