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 …

Geometry optimization and GIAO (gauge including atomic orbitals) 13 C NMR chemical shift
calculations at Hartree–Fock level, using the 6‐31G(d) basis set, are proposed as a tool to …

Ab initio calculations at the Hartree–Fock level with full‐geometry optimization using the 6‐31G(d)
basis set, and GIAO (gauge including atomic orbitals) 13 C NMR chemical shifts, are …

The influence of the calculation method in mimicking experimental 13 C NMR chemical
shifts of 15 low‐polarity natural products singularly containing 10–20 carbon atoms was …

Callipeltin A (1) is a cyclic depsidecapeptide from a shallow water sponge of the genus
Callipelta (order Lithistida), collected in the waters off New Caledonia. The structure of callipeltin …

A new bromoindole alkaloid, named dragmacidin F (1) and structurally related to other
dragmacidins previously described, was isolated from a marine sponge of the genus Halicortex …

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-…

Pseudomonas tolaasii, the causal organism of brown blotch disease of Agaricus bisporus
and of the yellowing of Pleurotus ostreatus, was shown to produce in culture tolaasin I (1), …

The marine product petrosaspongiolide M is a novel inhibitor of phospholipase A 2 (PLA 2 ),
showing selectivity for secretory PLA 2 versus cytosolic PLA 2 , with a potency on the …

Five new bioactive sesterterpenes (1−5) have been isolated from the New Caledonian
marine sponge Petrosaspongia nigra Bergquist and named petrosaspongiolides M−R. Their …