cas 19069-44-4, 4a-methyl-1-methylidene-7-(prop-1-en-2-yl)decahydronaphthalene

Articles about 19069-44-4Total 3 be found

Sesquiterpenes from the essential oil of the liverwort Conocephalum conicum
Three new brasilane type sesquiterpenes related to the known alcohol conocephalenol and the sesquiterpene alcohol presilphiperfolan-1-ol were isolated from a chemotype of the liverwort Conocephalum conicum collected in southern Germany and identified by NMR investigations, enantioselective gas chromatography and chemical correlations. In addition ent-(-)-dactylol, the enantiomer of a compound so far only found as a constituent of the Caribbean sea hare Aplysia dactylomela, was identified.
Melching, Stephanie,Koenig, Wilfried A.
p. 517 - 523
(2007/10/03)

Structures and spasmolytic activities of derivatives from sesquiterpenes of Alpinia speciosa and Alpinia japonica
Sesquiterpenes isolated from Alpinia speciosa and Alpinia japonica, and their derivatives were found to inhibit histamine- or barium chloride- induced contraction of excised guinea pig ileum when tested by the Magnus method. Major spasmolytic principles contained in those extracts were the sesquiterpenes, β-eudesmol, nerolidol, humulene epoxide II and 4α- hydroxydihydroagarofuran. Relationships between the chemical structures of the sesquiterpenes and their derivatives, and their spasmolytic activities were discussed.
Morita, Makoto,Nakanishi, Hiroshi,Morita, Hiroshi,Mihashi, Susumu,Itokawa, Hideji
p. 1603 - 1606
(2007/10/03)

BIOMIMETIC CYCLIZATION OF HEDYCARYOL DERIVATIVES. UNEXPECTED CYCLIZATION OF PHENYL SULFIDES WITH METHYL IODIDE
Four isomeric hedycaryol phenyl sulfides, when reacted with MeI, yielded eudesmol derivatives with different stereochemistry from that of the acid cyclization products of the corresponding hedycaryols.New stereoisomers of α- and β-eudesmols, β-dehydroparadisiol and a defensive substance of termite were synthesized.Nephthenol phenyl sulfide yielded a 14-membered tetraene.
Kodama, Mitsuaki,Shimada, Kazuaki,Ito, Sho
p. 1523 - 1526
(2007/10/02)