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Three new anthranilic acid derivatives,N-heneicosanoylanthranilic acid(1b),N-tricosanoylanthranilic acid(1d),N-tetra- cosanoylanthranilic acid(1e),and two known N-arachidylanthranilic acid(1a)and N-docosanoylanthranilic acid(1c)were isolated from the aerial parts of lnula japonica Thunb.Their structures were established by spectroscopic and chemical methods.
N-tricosanoylanthranilic acid (1d), N-tetra- cosanoylanthranilic acid (1e), and two known N-arachidylanthranilic acid (1a) and N-docosanoylanthranilic acid (1c) were isolated from the aerial parts of lnula japonica Thunb. their structures were established by spectroscopic and chemical methods.