'Upenamide: An unprecedented macrocyclic alkaloid from the Indonesian sponge Echinochalina sp.
'Upenamide (1) represents a new class of macrocyclic marine alkaloid possessing both spirooxaquinolizidinone and hemiaminal ring systems. It was isolated from the Indonesian sponge Echinochalina sp. The gross structure of 1 was elucidated by spectroscopic methods and accurate mass measurements. A suggestion is made as to its biogenetic origin.
Jiménez
J I
JI
Department of Chemistry, University of Hawai'i at Manoa, Honolulu, Hawaii 96822-2275, USA.
Goetz
G
G
Mau
C M
CM
Yoshida
W Y
WY
Scheuer
P J
PJ
Williamson
R T
RT
Kelly
M
M
D000818:Animals; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D011161:Porifera / Q000737:chemistry*; D011807:Quinolizines / Q000737:chemistry / Q000302:isolation & purification*; D013141:Spiro Compounds / Q000737:chemistry / Q000302:isolation & purification*
D011807:Quinolizines; D013141:Spiro Compounds; C418125:upenamide