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ABSTRACT:N'-tert-Butoxycarbonylmonoamino acid-binding ,8-CDs (1,2,3,4,5) and a-CD (6) were prepared by DCC coupling. NMR study suggests some of these novel modified CDs that act as host and guest to prefer "pseudo polymer" formation. The length of an arm between the N'-tert-butoxycarbonyl group and C6 position on the glucose ring was that of -NH-Ca -CO-NH-. Modified ,8-CDs having longer arm form intramolecular rather than intermolecular complexes.

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