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J Nat Prod

Title:		"New terpene hydrocarbons from the alligatoridae (crocodylia, reptilia)"
Author(s):		Schulz S; Kruckert K; Weldon PJ;
Address:		"Institut fur Organische Chemie, Technische Universitat Braunschweig, Hagenring 30, D-38106 Braunschweig, Germany. stefan.schulz@tu-bs.de"
Journal Title:		J Nat Prod
Year:		2003
Volume:		66
Issue:		1
Page Number:		34 - 38
DOI:		10.1021/np020073r
ISSN/ISBN:		0163-3864 (Print) 0163-3864 (Linking)
Abstract:		"The contents of the paracloacal gland secretions of the alligatorids Alligator mississippiensis, A. sinensis, Paleosuchus palpebrosus, and P. trigonatus were investigated. Novel acyclic hydrocarbon terpenes with a rare trisubstituted 2,4-diene system were identified in the secretions of A. sinensis, P. palpebrosus, and P. trigonatus. The structures of the monoterpene (2E,4E)-3,7-dimethyl-2,4-octadiene (9) and the sesquiterpene (2E,4E,7S)-3,7,11-trimethyl-2,4-dodecadiene (14) were proven by synthesis and gas chromatography on a chiral phase. Several other new terpenes (11, 16, 17, 18, 19, and 20) related to these components also were present in the secretions, as well as the known compounds myrcene (6), (E)-beta-farnesene (4), (E)-beta-springene (3), squalene (5), cembrene A (1), and 11,12-dihydrocembren-10-one (2)"
Keywords:		"*Alligators and Crocodiles Animals Florida Molecular Structure Nuclear Magnetic Resonance, Biomolecular Pheromones/*chemistry/*isolation & purification Scent Glands/*chemistry Sesquiterpenes/chemistry/isolation & purification Stereoisomerism Terpenes/*che;"
Notes:		"MedlineSchulz, Stefan Kruckert, Karsten Weldon, Paul J eng Research Support, Non-U.S. Gov't 2003/01/25 J Nat Prod. 2003 Jan; 66(1):34-8. doi: 10.1021/np020073r"