| Zhou, B.-N., Mattern, M.P., Johnson, R.K., and Kingston, D.G.I. 2001. Structure and stereochemistry of a novel bioactive sphingolipid from a Calyx sp. Tetrahedron. 57:9549-9554. |
| |
| Carballeira, N.M., and Pagan, M. 2000. Identification and total synthesis of a novel dimethylated fatty acid from the Caribbean sponge Calyx podatypa. J. Nat. Prod. 63:666-669. |
| |
| Carballeira, N.M., Pagan, M., and Rodríguez, A.D. 1998. Identification and total synthesis of novel fatty acids from the Caribbean sponge Calyx podatypa. J. Nat. Prod. 61:1049-1052 |
| |
| Rodríguez, A.D., Cobar, O.M., Padilla, O.L., and Barnes, C.L. 1997c. Calyxamines A and B, novel piperidine alkaloids from the Caribbean sea sponge Calyx podatypa. J. Nat. Prod. 60:1331-1333. |
| |
| Rodríguez, A.D., Cobar, O.M., and Padilla, O.L. 1997b. The calyxolanes: new 1,3-diphenylbutanoid metabolites isolated from the Caribbean marine sponge Calyx podatypa. J. Nat. Prod. 60:915-917. |
| |
| Adamczeski, M., Reed, A.R., and Crews, P. 1995. New and known diketopiperazines from the Caribbean sponge Calyx cf. podatypa. J. Nat. Prod. 58:201-208. |
| |
| Stierle, D.B., and Faulkner, D.J. 1991a. Antimicrobial n-methylpyridinium salts related to the xestamines from the Caribbean sponge Calyx podatypa. J. Nat. Prod. 54:1134-1136. |
| |
| Ha, T.B.T., and Djerassi, C. 1989. Minor and trace sterols in marine invertebrates. 62. Novel coprostanols with unusual side chains from the marine sponge Calyx nicaeensis. Steroids. 53:487-499. |
| |
| Doss, G.A., and Djerassi, C. 1988. Sterols in marine invertebrates. 60. Isolation and structure elucidation of four new steroidal cyclopropenes from the sponge Calyx podatypa. J. Am. Chem. Soc. 110:8124-8128. |
| |
| Proudfoot, J.R., Li, X., and Djerassi, C. 1985. Minor and trace sterols from marine invertebrates. 50. Stereostructure and synthesis of nicasterol, a novel cyclopropane-containing sponge sterol. J. Org. Chem. 50:2026-2030. |
| |
| Itoh, T., Sica, D., and Djerassi, C. 1983. Minor and trace sterols in marine invertebrates. 36. (24S)-24H-Isocalysterol: a new steroidal cyclopropene from the marine sponge Calyx niceaensis. J. Org. Chem. 48:890-892. |
| |
| Li, L.N., Li, H.T., Lang, R.W., Itoh, T., Sica, D., and Djerassi, C. 1982. Minor and trace sterols in marine invertebrates. 31. Isolation and structure elucidation of 23H-isocalysterol, a naturally occurring cyclopropene. Some comparative observations on the course of hydrogenolytic ring opening of steroidal cyclopropenes and cyclopropanes. J. Am. Chem. Soc. 104:6726-6732. |
| |
| Steiner, E., Djerassi, C., Fattorusso, E., Magno, S., Mayol, L., Santacroce, C., and Sica, D. 1977. 52. Isolation, structure determination and synthesis of new acetylenic steroids from the sponge Calyx nicaeensis. Helvet. Chim. Acta. 60:475-481. |
| |
| Fattorusso, E., Magno, S., Mayol, L., Santacroce, C., and Sica, D. 1975c. Calysterol: a C29 cyclopropene-containing marine sterol from the sponge Calyx nicaensis. Tetrahedron. 31:1715-1716. |
| |
