New Antimicrobial C14and C13Amines from a South African Marine Ascidian

Abstract
Four new anti-microbial, unsaturated amino alcohols were isolated as their acetyl derivatives (1–4) from an extract of a South African marine ascidian (Pseudodistoma species). Standard spectroscopic methods were used to establish the structures of these compounds as 2S*-acetamido-3S*-acetoxy-5E, 13-tetradecadiene (1), 2S*-acetamido-3S*-acetoxy-5E-tetradecene (2), 1-acetamido-2-acetoxy-4E, 12-tridecadiene (3) and 1-acetamido-2-acetoxy- 4E-tridecene (4).