Two novel nonterpenoidal constituents, nimbothalin and n-tridecyl benzene,
have been isolated from leaves of Azadirachta indica and characterized spec
troscopically. The structure of nimbothalin was established as 2-[(2,4-dica
rboxy-3-methyl)-benzyl]-8,10-dimethyl-1,3,5,7,9-undeca-pentaene. (C) 1998 P
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