Abstract

Improved synthetic procedures for the formation of a number of dimeric derivatives of noracronycine (2) are described based on acid-catalyzed reactions in methanolic HCl or methanolic H2SO4. A detailed analysis of their high-field proton nmr spectral characteristics is presented. The synthesis and structure determination of a new trimer of noracronycine (2) possessing the linear-angular-angular structure (15) is described.

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