Y. Venkateswarlu et al., ALPHA-KETO FATTY-ACIDS OCCURRING AS AMIDES OF 2-METHYLENE BETA-ALANINE METHYL-ESTERS FROM THE SPONGES SPONGIA-OFFICINALIS AND FASCIOSPONGIA-CAVERNOSA, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 37(8), 1998, pp. 832-834
N-acyl 2-methylene beta-alanine methyl esters 1 and 3 have been isolat
ed from the sponges Spongia officinalis and Fasciospongia cavernosa re
spectively and a known furano diterpene ambliofuran 2 has been isolate
d from the sponge Spongia officinalis and characterized by spectral da
ta.