Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Two new natural products, 2,5,6-tribromo-N-methylgramine ( ) and its corresponding side-chain N-oxide, , have been isolated from the subtropical marine bryozoan . The structures of these compounds were illustrated by spectral analyses and by chemical synthesis.
