185382-08-5Relevant academic research and scientific papers
6-Carboxamido dihydropyran derivatives
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, (2008/06/13)
Compounds of formula (I), STR1 wherein R1 represents OR5, SR5, NR5 R6, N(OR5)R6 or N(NR5 R6)R6 ; X represents OH, N3, NR3 R4 or NR4 CO2 R15 ; Y represents H or NHR2 ; R2 represents a group SO2 R7 or COR7 ; R3 represents H, C1-6 alkyl or C(=NR8)NR9 R10 ; R4 represents H or C1-6 alkyl; R5 represents H, C1-20 alkyl, C3-8 cycloalkyl, C2-20 alkenyl, C2-20 alkynyl, CHR11 COR12 or C1-20 alkyl substituted by one or more groups selected from NR13 R14, NR13 COR14, CO2 R13, OR13, C3-8 cycloalkyl and optionally substituted aryl; each R6 independently represents H, C1-6 alkyl, C3-8 cycloalkyl, C2-6 alkenyl, C2-20 alkynyl, aryl or C1-4 alkyl substituted by one or more groups selected from NR13 R14, COR13, C3-8 cycloalkyl, CN, N3, OR13 and optionally substituted aryl; or R5 and R6 together form a C2-6 hydrocarbon chain which may optionally contain a group NR13 which chain is optionally substituted by 1, 2, 3 or 4 groups selected from oxo and C1-6 alkyl groups which groups may optionally be substituted by hydroxy or optionally substituted aryl; R7 represents C1-6 alkyl optionally substituted by one or more halogen atoms, C3-8 cycloalkyl or optionally substituted aryl; R8, R9 and R10 each independently represent H, C1-6 alkyl, amino, hydroxy, cyano or nitro; R11 represents the side chain of a D- or L-amino acid; R12 represents NR13 R14, OR13 or R13 ; each R13 and each R14 independently represents H, C1-6 alkyl or optionally substituted arylC1-4 alkyl; R15 represents C1-6 alkyl; and their pharmaceutically acceptable derivatives are neuraminidase inhibitors useful in the treatment of viral infections.
Dihydropyrancarboxamides related to zanamivir: A new series of inhibitors of influenza virus sialidases. 1. Discovery, synthesis, biological activity, and structure-activity relationships of 4-guanidino- and 4-amino-4h-pyran-6-carboxamides
Smith, Paul W.,Sollis, Steven L.,Howes, Peter D.,Cherry, Peter C.,Starkey, Lan D.,Cobley, Kevin N.,Weston, Helen,Scicinski, Jan,Merritt, Andrew,Whittington, Andrew,Wyatt, Paul,Taylor, Neil,Green, Darren,Bethell, Richard,Madar, Safia,Fenton, Robert J.,Morley, Peter J.,Pateman, Tony,Beresford, Alan
, p. 787 - 797 (2007/10/03)
4-Amino- and 4-guanidino-4ff-pyran-6-carboxamides 4 and 5 related to zanamivir (GG167) are a new class of inhibitors of influenza virus sialidases. Structure-activity studies reveal that, in general, secondary amides are weak inhibitors of both influenza
