Enantioselective Total Synthesis of (-)-Clavosolide A and B
摘要:
完全报道了(-)-clavosolide A和B的对映选择性全合成,包括所提出的(-)-clavosolide A (1)结构的合成、修订后的(-)-clavosolide A (5)结构的合成以及修订后的(-)-clavosolide B (6)结构的合成。通过比较其旋光值和$^1H$及$^{13}C$核磁共振谱,明确证实了这些天然产物的相对和绝对立体化学。
Enantioselective Total Synthesis of (−)-Clavosolide B
作者:Jung Beom Son、Min-ho Hwang、Wonsun Lee、Duck-Hyung Lee
DOI:10.1021/ol7015115
日期:2007.9.1
Enantioselective synthesis of 2, a revised structure for (-)-clavosolide B, was accomplished by a convergent approach, where syn-selective aldol, hydroxy-directed cyclopropanation, Mitsunobu inversion, Schmidt-type glycosylation, and macrolactonization reactions were utilized as key reactions. Comparison of 1H and 13C NMR spectra and optical rotation measurement confirmed the relative and absolute
Enantioselective Total Synthesis of (-)-Clavosolide A and B
作者:Jung-Beom Son、Si-Nae Kim、Na-Yeong Kim、Min-Ho Hwang、Won-Sun Lee、Duck-Hyung Lee
DOI:10.5012/bkcs.2010.31.03.653
日期:2010.3.20
Enantioselective total synthesis of (-)-clavosolide A and B was reported in full including the synthesis of proposed structure of (-)-clavosoldie A (1), revised structure of (-)-clavosoldie A (5), and revised structure of (-)-clavosoldie B (6). The relative and absolute stereochemistries of the natural products were confirmed unambiguously by comparing the optical rotation values and $^1H$ and $^13}C$ NMR spectra of them.
完全报道了(-)-clavosolide A和B的对映选择性全合成,包括所提出的(-)-clavosolide A (1)结构的合成、修订后的(-)-clavosolide A (5)结构的合成以及修订后的(-)-clavosolide B (6)结构的合成。通过比较其旋光值和$^1H$及$^13}C$核磁共振谱,明确证实了这些天然产物的相对和绝对立体化学。
Total Synthesis of the Marine Natural Product (−)-Clavosolide A. A Showcase for the Petasis−Ferrier Union/Rearrangement Tactic
作者:Amos B. Smith、Vladimir Simov
DOI:10.1021/ol0611752
日期:2006.7.1
see text] The totalsynthesis of the marine diolide (-)-clavosolide A has been achieved in 17 steps (longest linear sequence) from commercially available crotonaldehyde exploiting the Petasis-Ferrier union/rearrangement tactic to construct the requisite aglycon monomer. A one-pot esterification/lactonization employing the Yamaguchi protocol, followed by bis-glycosidation, furnished (-)-clavosolide A