The oxazole is a five-membered aromatic heterocycle that contains both oxygen and
nitrogen. Oxazoles are numbered around the ring starting at the oxygen atom as shown …

Secondary metabolites containing oxazole, oxazoline and isoxazoline ring skeletons are
widely distributed in both marine and terrestrial organisms. They possess significant …

Containing fully authenticated data on virtually all known natural products, the" Dictionary of
Natural Products", main work, published in 1993 was the end result of over 12 years …

Four novel bisulfide bromotyrosine derivatives, psammaplins E (9), F (10), G (11), and H
(12), and two new bromotyrosine derivatives, psammaplins I (13) and J (14), were isolated …

Sponges are host organisms for various symbiotic microorganisms such as archaea,
bacteria, cyano-bacteria and microalgae. Sponges are also sources of a wide variety of …

Two new antifungal and cytostatic macrolides, phorboxazoles A (1) and B (2), have been
isolated from the Indian Ocean marine sponge Phorbas sp. Structural assignment was …

A group of functionalized oxazoles were synthesized in moderate to good yields from
enamides via phenyliodine diacetate (PIDA)-mediated intramolecular cyclization. The main …

An elemental tellurium mediated synthesis of 2-(trifluoromethyl) oxazoles from the reaction
of acetophenone oxime acetates with trifluoroacetic anhydride has been developed. This …

This Report is a review of the literature of marine natural product chemistry for 1993. Earlier
reports published in this journal cover the period from 1977 to December 1992. l-lO The …

A new 1-imidazoyl-3-carboxy-6-hydroxy-β-carboline alkaloid, named hyrtiocarboline (1),
was isolated from a Papua New Guinea marine sponge, Hyrtios reticulatus. The structure …