Structures for corticin A (5), B (6), and C (14), benzobisbenzofuranoid
metabolites of the fungus Corticium caeruleum are suggested. The synthesis of a number of benzobisbenzofuranoid derivatives is described and their
mass spectra are discussed.
A number of hydroxyamidines
and amidoximes have been prepared in order to examine if their chelating system
can lead to cytotoxic compounds. Most compounds are toxic but all are inactive
against experimental tumours. The i.r., u.v. and N.M.R. spectra of the
hydroxyamidines are discussed.
Die Hydroxyamidine (I) werden aus N‐Phenylhydroxylamin und den entsprechenden Carbonsäureimidchloriden und die Amidoxime (II) aus Hydroxylamin und den entsprechenden N‐Aryl‐benzimidchloriden dargestellt.
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