申请人:KRUEGEL Andrew C.
公开号:US20170334923A1
公开(公告)日:2017-11-23
The present invention provides a compound having the structure wherein A is a ring structure, with or without substitution; X1 is C or N; X2 is N, O, or S; Y1 is H, -(alkyi), -(alkenyl), -(alkynyl), -(cycloalkyi), (haloalkyi), -(alkyl)-O-(alkyl) or -(alkyl)-(cycloalkyl); Y 2 is H, -(alkyi), -(alkenyl), -(alkynyl), -(cycloalkyi), (haloalkyi), -(alkyl)-O-(alkyl) or -(alkyl)-(cycloalkyl); Y3 is H-(alkyi), -(alkenyl), -(alkynyl), -(cycloalkyi), (haloalkyi), -(alkyl)-O-(alkyl) or -(alkyl)-(cycloalkyl); Y 4 is H-(alkyi), -(alkenyl), -(alkynyl), -(cycloalkyi), (haloalkyi), -(alkyl)-O-(alkyl) or -(alkyl)-(cycloalkyl); Y5 is H, -(alkyi), -(alkenyl), -(alkynyl), -(cycloalkyi), (haloalkyi), -(alkyl)-O-(alkyl) or -(alkyl)-(cycloalkyl); a and P are each present or absent and when present each is a bond.