1. Princeton, NJ: Firmenich Inc. Current address: P. O. Box 5880, 08540
2. Didemnaketals A and B, HIV-1 protease inhibitors from the ascidian Didemnum sp
3. The magenta coloredDidemnum, sp. (collection # 93–177) was found in only one location in Palau. Dr. Françoise Monniot has examined a specimen (registration # MNHN Az DidC 266) and has informed us that it is a new species, which will be described later
4. A radiometric assay for HIV-1 protease