Zobrazeno 1 - 4
of 4
pro vyhledávání: '"A.Somasekar Rao"'
Publikováno v:
Tetrahedron. 9:275-283
Costunolide, the new sesquiterpene lactone isolated from costus root oil (Saussurea lappa Clarke) is shown to have the structure I on the basis of dehydrogenation, ozonolyses and the formation of santanolide 'C' under mild conditions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d23324a442f6a299ee6ff454b322a36
https://doi.org/10.1016/0040-4020(60)80017-8
https://doi.org/10.1016/0040-4020(60)80017-8
Publikováno v:
Tetrahedron. 19:1061-1071
An unambiguous total synthesis of tetrahydrosaussurea lactone using santonin as the starting material has been established. This synthesis confirms the structure and absolute configuration of tetrahydrosaussurea lactone as well as that of saussurea l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ab6123a5baa279518cd4d4bc37ac196
https://doi.org/10.1016/s0040-4020(01)99361-5
https://doi.org/10.1016/s0040-4020(01)99361-5
Publikováno v:
Tetrahedron. 13:319-323
Saussurea lactone is identical with the product of pyrolysis of dihydrocostunolide. On cyclisation in the presence of p-nitrobenzoic acid followed by hydrogenation it gives santanolide C. Hence structure (V) is assigned to saussurea lactone.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::756053857237e44126b2c86b84debad9
https://doi.org/10.1016/s0040-4020(01)92225-2
https://doi.org/10.1016/s0040-4020(01)92225-2
Publikováno v:
Tetrahedron. 12:178-180
The methoxylactone isolated from costus root oil is shown to be 12-methoxydihydrocostunolide.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffdd2ae2401c57c3721f40a68d1fda3a
https://doi.org/10.1016/0040-4020(61)80113-0
https://doi.org/10.1016/0040-4020(61)80113-0