Carbohydrates play key roles in biological recognition processes, 1, 2 in development of
diseases, 3 and in many important areas of food and technical industry. The function of …

Stereochemical features have a profound impact on a variety of molecular properties, such
as chemical reactivity and catalytic, biological, and pharmacological activities. In light of the …

Apratoxin A (1), a potent cytotoxin with a novel skeleton, has been isolated from the marine
cyanobacterium Lyngbya majuscula Harvey ex Gomont. This cyclodepsipeptide of mixed …

Two new sesquiterpene coumarins, named szowitsiacoumarin A (1) and szowitsiacoumarin
B (2), and a phenylpropanoid derivative, 2-epihelmanticine (3), together with nine known …

After the huge impact that residual dipolar couplings (RDCs) have had on the structure
determination of biological macromolecules by NMR spectroscopy, their utility in the …

A survey of heteronuclear correlation experiments for the measurement of heteronuclear
coupling constants is presented. The purpose of this survey is to evaluate several recent …

A molecule that is introduced into a liquid crystal or alignment medium forfeits its isotropic
tumbling motion. The resulting partial alignment leads to observable anisotropic interactions …

Six new depsipeptides belonging to two different structural classes, termed celebesides A−
C and theopapuamides B− D, have been isolated from the marine sponge Siliquariaspongia …

In this work we present a new pulse sequence for the measurement of long-range
heteronuclear coupling constants in which the optimization of coherence selection by pulsed …

Two new metabolites, named halipeptins A and B, have been isolated from the marine
sponge Haliclona sp. Their structures were determined by extensive use of one-and two …