Absolute Configuration of the Cytotoxic Marine Alkaloid Monanchocidin A

J Nat Prod. 2018 Apr 27;81(4):1113-1115. doi: 10.1021/acs.jnatprod.8b00105. Epub 2018 Mar 19.

Abstract

The absolute configuration of the cytotoxic guanidine alkaloid monanchocidin A with 11 stereogenic centers from the marine sponge Monanchora pulchra was determined as 5 R, 8 S, 10 S, 13 R, 14 S, 15 R, 19 R, 23 R, 37 S, 42 S, 43 R after extensive reductive degradation and conversion of the resulting alcohols to MTPA derivatives.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkaloids / chemistry*
  • Animals
  • Aquatic Organisms / chemistry*
  • Cytotoxins / chemistry*
  • Guanidine / analogs & derivatives*
  • Guanidine / chemistry
  • Guanidines / chemistry
  • Porifera / chemistry

Substances

  • Alkaloids
  • Cytotoxins
  • Guanidines
  • monanchocidin
  • Guanidine