Total Synthesis of (10R)- and (10S)-Corossolin: Determination of the Stereochemistry at C-10 of the Natural Corossolin and the Differential Toxicity toward Cancer Cells Caused by the Configuration at C-10
Total Synthesis of (10R)- and (10S)-Corossolin: Determination of the Stereochemistry at C-10 of the Natural Corossolin and the Differential Toxicity toward Cancer Cells Caused by the Configuration at C-10
Enantioselective Syntheses of Monotetrahydrofuran Annonaceous Acetogenins Tonkinecin and Annonacin Starting from Carbohydrates
作者:Tai-Shan Hu、Qian Yu、Yu-Lin Wu、Yikang Wu
DOI:10.1021/jo005643b
日期:2001.2.1
The totalsynthesis of two mono-THF acetogenins, tonkinecin (1) and annonacin (2), is reported in full detail. Terminal acetylene 3 prepared from D-glucono-delta-lactone and asymmetric dihydroxylation was employed as a common intermediate for both targets 1 and 2. Pd(0)-catalyzed coupling reaction of 3 with vinyl iodides 4 and 5, the chiral centers of which were taken from D-xylose and S-(-)-ethyl
An efficient method for synthesis of α-keto acid esters from terminal alkynes
作者:Lian-Sheng Li、Yu-Lin Wu
DOI:10.1016/s0040-4039(02)00290-3
日期:2002.3
α-Keto acid esters can be easily prepared in high yields in two steps from terminalalkynes via bromination and oxidation. This strategy provides a versatile access to the synthesis of biologically important natural products with an α-keto acid moiety.
The First Total Synthesis of Annonacin, the Most Typical Monotetrahydrofuran Annonaceous Acetogenins
作者:Tai-Shan Hu、Yu-Lin Wu、Yikang Wu
DOI:10.1021/ol005504g
日期:2000.4.1
The first total synthesis of annonacin (1) was achieved by a highly convergent synthetic strategy. All the stereogenic centers were derived from three natural hydroxy acids respectively, except that those at C19 and C20 were produced from a Sharpless AD reaction.
A total synthesis of annonacin (1) was accomplished by using versatile chiral building block 2 for synthesizing the mono-tetrahydrofuran (THF) annonaceous acetogenins.