Appeal No. 95-1999
Application No. 08/047,381
R and R , which are the same or different, represent2 3
hydrogen, aryl or substituted aryl, which is substituted by
straight-chain or branched-chain C -alkyl, C -alkoxyl,1-18 1-18
carboxyl-C -alkyl or halogen, or represent straight-chain or
1-17
branched chain C -alkyl, C -alkoxyl, C -alkoxycarbonyl, in1-18 1-18 1-17
which alkyl and alkoxyl can be substituted by halogen or aryl,
in which, R , when represented by aryl or substituted
2
aryl, which is substituted by straight-chain or branched-chain
C -alkyl, C -alkoxy, carboxyl-C -alkyl or halogen, or when1-18 1-18 1-17
represented by C -alkyl or C -alkoxyl, or R can be linked1-18 1-18 1
with Ar by a single bond, and
in which, Ar, when represented by phenyl, C -
1-18
alkylphenyl, C -alkoxyphenyl, carboxyl-C -alkylphenyl or1-18 1-17
halogenphenyl, R can be represented by -O-, which is linked2
with the phenyl or phenyl moiety of Ar to a benzofuran, and
4
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Last modified: November 3, 2007