Patent ID: 6677471
Filing Date: 2004-01-13
Classification: C07H,Y02P

Abstract:
A compound having the formula: wherein:A is a diradical derived from a monocyclic or bicyclic aromatic ring system; R11 and R12 are each independently H, alkyl, aryl, heteroaryl, alkaryl, or aralkyl; or R11 and R12 together with the carbon atoms to which they are attached form an optionally substituted aliphatic or aromatic ring having from 4 to 6 ring atoms; X1 and X5 are each independently O or S; X2 is halogen; X3 is â€”N(R6)2, or a heterocycloalkyl or heterocycloalkenyl ring containing from 4 to 7 atoms, and having up to 3 heteroatoms selected from nitrogen, sulfur, and oxygen; each R6 is, independently, straight or branched chain alkyl having from 1 to 10 carbons; X4 is alkaryl, aralkyl, sulfonyl, thiol, substituted sulfonyl, or substituted thiol, wherein said substituent is alkyl, aryl, or alkaryl; or X4 is a group of formula â€”C(&boxH;O)â€”(O)aaâ€”R40 where aa is 0 or 1 and R40 is lower alkyl, aryl, aralkyl or heteroaryl wherein said lower alkyl, aryl, aralkyl or heteroaryl groups are optionally substituted with one or more alkyl, aryl, aralkyl, halo or acetyl groups; or X4 is a group of formula â€”(â€”CH2â€”CH2â€”)dSi(R9)3 where d is 0 or 1; and each R9 is, independently, alkyl having 1 to about 10 carbon atoms, or aryl having 6 to about 10 carbon atoms.