Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Ian P. Andrews"'
Autor:
Erica J. Zheng, Ian W. Andrews, Alexandra T. Grote, Abigail L. Manson, Miguel A. Alcantar, Ashlee M. Earl, James J. Collins
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-11 (2022)
Antibiotic tolerance, or the ability of bacteria to survive antibiotic treatment in the absence of genetic resistance, often involves a low metabolic state. Here, Zheng et al. show that tolerance does not readily evolve against antibiotics whose effi
Externí odkaz:
https://doaj.org/article/7c9a36880bc84974902377009584c79c
Publikováno v:
ChemCatChem
We have developed a phosphine-catalyzed (4+1) annulative rearrangement for the preparation of 3-pyrrolines from allenylic carbamates via phosphonium diene intermediates. We employed this methodology to synthesize an array of 1,3-disubstituted- and 1,
Autor:
Matthew Whiting, Daniel R. Tray, Charles A. Goss, Neil R. Curtis, Yangmu Chloe Liu, Mark J. Hughes, David C. Leitch, Brian M. Roesch, Charles E. Wade, Anna L. Dunn, Kenneth Arrington, Ian P. Andrews, John Jin Lim
Publikováno v:
Organic Process Research & Development. 24:1927-1937
This paper describes recent efforts to apply flow technology in the preparation of the key amino alcohol intermediate 3b so as to address manufacturability issues present in the batch process of a ...
Autor:
Ian P. Andrews, John M. Ketcham, Megan L. Peach, Noemi Kedei, Nancy E. Lewin, Peter M. Blumberg, Michael J. Krische
Publikováno v:
Journal of the American Chemical Society
The seco-B-ring bryostatin analogue, macrodiolide WN-1, was prepared in 17 steps (longest linear sequence) and 30 total steps with three bonds formed via hydrogen-mediated C-C coupling. This synthetic route features a palladium-catalyzed alkoxycarbon
Autor:
Gary T. Borrett, Graham R. Slater, Stephen A. Hermitage, Ian P. Andrews, Peter M. Kincey, Smith Neil, Mahesh J. Sanganee, Geracimos Rassias
Publikováno v:
Organic Process Research & Development. 13:774-780
The original medicinal chemistry synthesis of an iNOS inhibitor presented several challenges that had to be overcome in order to constitute a supply route suitable for operation on a multikilo scal...
Autor:
Ian P. Andrews, John S. Carey, Richard J. Atkins, David O. Morgan, Gary F. Breen, Andrew S. Wells, Timothy Charles Walsgrove, Stephen A. Smith, Amin Shamji, Michael Anthony Forth, Andrew C. Share
Publikováno v:
Organic Process Research & Development. 7:655-662
The development of an efficient manufacturing route to 2,3,4,5-tetrahydro-4-methyl-3-oxo-1H-1,4-benzodiazepine-2-acetic acid methyl ester SB-235349, a key intermediate in the synthesis of lotrafiban is described. The synthesis starts with 2-nitrobenz
Autor:
Ohyun Kwon, Ian P. Andrews
Publikováno v:
Organic Synth
Organic Syntheses
Organic Syntheses
Ethyl 5,5-dimethylhexa-2,3-dienoate Ethyl (triphenylphosphoranylidene)acetate 3,3-Dimethylbutyryl chloride Triethylamine Ethyl 5-(tert-butyl)-2-phenyl-1-tosyl-3-pyrroline-3-carboxylate (E)-N-Benzylidene-4-methylbenzenesulfonamide Tributylphosphine Ke
Publikováno v:
Synthetic Communications. 31:2323-2327
Methyllithium, in the presence of excess methyl iodide, can be used to convert suitably substituted aromatic bromides to the corresponding toluenes under mild conditions and in high yield.
Publikováno v:
Tetrahedron Letters. 41:6237-6240
A number of aryl halides (X=Cl, Br, I) can be converted to the corresponding toluenes in an operationally simple manner using trimethylboroxine (TMB) as a partner for palladium-catalysed Suzuki–Miyaura coupling.
Autor:
Ohyun Kwon, Ian P. Andrews
Publikováno v:
Tetrahedron Letters. 49:7097-7099
The palladium-catalyzed hydrostannation of acetylenes is widely exploited in organic synthesis as a means of forming vinyl stannanes for use in palladium-catalyzed cross-coupling reactions. Application of this methodology to ethyl ethynyl ether resul