Zaragozic acid A (squalestatin S1)(1) was converted into the simpler derivative 2, which was
reconverted into the natural product, thus establishing 2 as a viable relay compound for total …

In addition to the previously reported (+)-araguspongine A,(+)-araguspongine C,(+)-
araguspongine D,(−)-araguspongine E, and (+)-xestospongin B, two new N-oxide …

Tetrahedron Letters,Vo1.25,No.30,pp 3227-3230,1984 0040-4039/84 $3.00 + .oO Printed in
Great Britain 01984 Pergamon Press Ltd. S Page 1 Tetrahedron Letters,Vo1.25,No.30,pp …

The structure of the title compound,(+)-7 S-hydroxyxestospongin A was solved by single-
crystal X-ray diffraction analysis and the absolute stereochemistry obtained by analysis of …

This paper describes a straightforward divergent synthesis of (+)-goniofufurone mimics (4, 5
and 6) starting from d-xylose. In a preliminary bioassay, analogues 4 and 5 exhibited a …

Hymexazol (HYM) is irreplaceable for treating soil-borne diseases due to its high efficiency
and low cost, as a broad-spectrum fungicide. However, when HYM is absorbed by plants, it …

Due to their manifold biological activities, natural products such as triterpenoids have
advanced to represent excellent leading structures for the development of new drugs. For …

抄録 In the course of studies on the metabolism of saikosaponins, which are the main
constituents of Bupleurum falcatum L., five new compounds derived from saikosaponins a, c …

The spongipyran macrolides, a new class of marine natural products, exhibit subnanomolar
antitumor activities against a number of human cancer cell lines. Independent …

A stereocontrolled, total synthesis of (+)-spongistatin 1 (1) has been achieved. Union of a
second-generation EF Wittig salt (+)-3 with the advanced ABCD aldehyde (−)-4, followed by …