Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Spirastrellolide B"'
Publikováno v:
Organic Letters
The synthesis of the C9-C25 subunit of the marine natural product spirastrellolide B is reported. The key synthetic features included the union of the two key fragments 5 and 6 via a Suzuki-Miyaura coupling reaction and a late-stage, one-pot sequenti
Publikováno v:
Tetrahedron Letters. 55:4067-4070
A convergent synthesis of the protected C(1)–C(23) fragment 4 of the targeted natural product spirastrellolide B is described. The key step of the synthesis is cross metathesis (CM) and TBAF promoted oxa-Michael to construct tetrahydropyran moiety.
Publikováno v:
Organic Letters. 14:3998-4001
Differential synthetic access to an advanced C26-C40 northern hemisphere fragment of spirastrellolide B and to a related [5,5,7]-bis-spiroketal analogue from a common intermediate has been achieved. Central to this venture is the regiocontrolled func
Autor:
Margaret A. Brimble, Jack L.-Y. Chen
Publikováno v:
The Journal of Organic Chemistry. 76:9417-9428
The spirastrellolides are a family of potent antimitotic agents isolated from the marine sponge Spirastrella coccinea . Synthetic studies toward the DEF bis-spiroacetal core of spirastrellolide B are reported. A modular approach was pursued by the us
Publikováno v:
ChemInform. 46
The key steps of the synthesis of the title fragment (I) are cross metathesis and Bu4NF promoted oxa-Michael reaction.
Publikováno v:
Organic Letters. 10:4355-4357
A combination of "chiron" and "asymmetric" approaches is utilized to construct the southern (C 9-C 25) region of marine natural product spirastrellolide B. The key functionalities are derived from d-glucose and Sharpless asymmetric epoxidation and di
Autor:
Margaret A. Brimble, Jack L.-Y. Chen
Publikováno v:
ChemInform. 41
The [5,6,6]-bis-spiroacetal moiety (II) of spirastrellolide B is prepared via a HgCl2-mediated double dithiane deprotection accompanied by a simultaneous bis-spiroacetalisation as a key step.
Autor:
Katie A. Keaton, Andrew J. Phillips
Publikováno v:
Organic letters. 10(6)
A synthesis of the C1−C23 subunit of spirastrellolide B is described. The synthesis features two applications of a Kulinkovich-cyclopropanol ring-opening strategy for the coupling of esters with olefins to produce ketones.
Autor:
Ce Wang, Craig J. Forsyth
Publikováno v:
ChemInform. 38
Publikováno v:
Journal of the American Chemical Society. 129(3)
The new macrolide spirastrellolide B (5) has been isolated from extracts of the marine sponge Spirastrella coccinea collected in Dominica. Chemical transformations of spirastrellolide B have converted it to a bromine-containing crystalline derivative