Y. Nakao et al., Penarolide sulfates A(1) and A(2), new alpha-glucosidase inhibitors from amarine sponge Penares sp., TETRAHEDRON, 56(46), 2000, pp. 8977-8987
Penarolide sulfates A(1) (1) and A(2) (2) have been isolated as alpha -gluc
osidase inhibitors from a marine sponge Penares sp.(1) Their structures inc
luding absolute stereochemistry were determined to be unique 30- and 31-mem
bered macrolides encompassing a proline residue and three sulfate groups by
interpretation of spectral data and chemical degradation. Penarolide sulfa
tes Al (1) and A2 (2) inhibit alpha -glucosidase with IC50 values of 1.2 an
d 1.5 mug/mL, respectively. (C) 2000 Elsevier Science Ltd. All rights reser
ved.