Laville R., Thanh Binh Nguyen, Moriou C., Petek Sylvain, Debitus Cécile, Al-Mourabit A.
Source
Heterocycles, 2015,
90 (2), p. 1351-1366 ISSN 0385-5414
Seven 2,5-diketopiperazines (DKPs) were isolated from the Fijian marine sponge Acanthella cavernosa. NMR and circular dichroism (CD) comparison with synthetic L-L DKPs allowed us to determine unambiguously the L-L absolute configuration of the natural DKPs. This work initiated the setting up of an optical properties database of natural DKPs, including specific rotation and CD.