Patent number: 7038040
Abstract: Multiple novel reaction schemes, novel process steps and novel intermediates are provided for the synthesis of epoxymexrenone and other compounds of Formula I wherein: -A-A- represents the group —CHR4—CHR5— or CR4?CR5— R3, R4 and R5 are independently selected from the group consisting of hydrogen, halo, hydroxy, lower alkyl, lower alkoxy, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, cyano, aryloxy, R1 represents an alpha-oriented lower alkoxycarbonyl or hydroxyalkyl radical, -B-B- represents the group —CHR6—CHR7— or an alpha- or beta-oriented group: ?where R6 and R7 are independently selected from the group consisting of hydrogen, halo, lower alkoxy, acyl, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, alkyl, alkoxycarbonyl, acyloxyalkyl, cyano, aryloxy, and R8 and R9 are independently selected from the group consisting of hydrogen, halo, lower alkoxy, acyl, hydroxyalkyl, alkoxyalkyl, hydroxycarbonyl, alkyl, alkoxycarbonyl, acyloxyalkyl, cyano, aryloxy, or R8 and R9 together comprise a carbocyclic or h
Type:
Grant
Filed:
June 27, 2003
Date of Patent:
May 2, 2006
Assignee:
G.D. Searle & Co.
Inventors:
John S. Ng, Ping T. Wang, Julio A. Baez, Chin Liu, Dennis K. Anderson, Jon P. Lawson, Bernhard Erb, Joseph Wieczorek, Gennaro Mucciariello, Fortunato Vanzanella, Sastry A. Kunda, Leo J. Letendre, Mark J. Pozzo, Yuen-Lung L. Sing, Edward E. Yonan
Patent number: 6831096
Abstract: Disclosed are compounds of the formula:
which are useful for inhibiting neuraminidases from disease-causing microorganisms, especially, influenza neuraminidase. Also disclosed are compositions and methods for preventing and treating diseases caused by microorganisms having a neuraminidase, processes for preparing the compounds and synthetic intermediates used in these processes.
Type:
Grant
Filed:
September 24, 2002
Date of Patent:
December 14, 2004
Assignee:
Abbott Laboratories
Inventors:
Clarence J. Maring, Yu Gui Gu, Hui-Ju Chen, Yuanwei Chen, David A. Degoey, William J. Flosi, Vincent L. Giranda, David J. Grampovnik, Warren M. Kati, Dale J. Kempf, April Kennedy, Larry L. Klein, Allan C. Krueger, Zhen Lin, Darold L. Madigan, Keith F. McDaniel, Steven W. Muchmore, Hing L. Sham, Kent D. Stewart, Vincent S. Stoll, Minghua Sun, Noah P. Tu, Frank L. Wagenaar, Gary T. Wang, Sheldon Wang, Paul E. Wiedeman, Yibo Xu, Ming C. Yeung, Chen Zhao, Stephen Hanessian, Malken Bayrakdarian, Xuehong Luo