选择性糖基化:通过完全立体选择性硝酮环加成,Tamao-Fleming氧化和选择性α-葡萄糖基化为关键步骤,实现了天然木麻黄的全合成(1)和木麻黄的6 - O -α-葡萄糖苷的首次全合成(2)。两种化合物的生物学分析证明它们分别对葡糖淀粉酶NtMGAM和海藻糖酶Tre37A具有强大的选择性抑制特性,这使它们成为这些酶的最强抑制剂。
选择性糖基化:通过完全立体选择性硝酮环加成,Tamao-Fleming氧化和选择性α-葡萄糖基化为关键步骤,实现了天然木麻黄的全合成(1)和木麻黄的6 - O -α-葡萄糖苷的首次全合成(2)。两种化合物的生物学分析证明它们分别对葡糖淀粉酶NtMGAM和海藻糖酶Tre37A具有强大的选择性抑制特性,这使它们成为这些酶的最强抑制剂。
Palladium-Catalyzed Additions of Terminal Alkynes to Acceptor Alkynes
作者:Barry M. Trost、Mark T. Sorum、Chuen Chan、Gerd Rühter
DOI:10.1021/ja9624937
日期:1997.1.1
The development of addition reactions wherein the product is the simple sum of the reactants plus anything else (only needed catalytically) constitutes an important goal for enhanced synthetic efficiency. The C−H bond of terminalalkynes (the donor alkynes) can be added to either terminalalkynes (self-coupling) or activated internal alkynes (cross-coupling) (the acceptor alkynes) in the presence of
A route to Z-enediynes via Pd catalyzed alkyne additions
作者:Barry M. Trost、Iwao Hachiya、Matthias C. McIntosh
DOI:10.1016/s0040-4039(98)01392-6
日期:1998.9
The combination of a Pd catalyzed mixed addition of a terminal alkyne with an internal alkyne and radical catalyzed E-Z isomerization provides an atom economical route to Z-enediynes. (C) 1998 Elsevier Science Ltd. All rights reserved.
An unusual regioselectivity in the Pd-catalyzed cross coupling of alkynes. A correction
作者:Barry M Trost、Janet L Gunzner、Tatsuro Yasukata
DOI:10.1016/s0040-4039(01)00596-2
日期:2001.6
Palladium catalyzed additions of terminal alkynes to alkynoates can lead from preferential to exclusive C-C bond formation at the alpha -carbon and, in the case of ethyl 3-dimethylphenylsilylpropiolate. complete selectivity for alpha -attack, an unprecedented regioselectivity that requires revision of the earlier assignment of regioselectivity. (C) 2001 Elsevier Science Ltd. All rights reserved.
Total Syntheses of Casuarine and Its 6-<i>O</i>-α-Glucoside: Complementary Inhibition towards Glycoside Hydrolases of the GH31 and GH37 Families
作者:Francesca Cardona、Camilla Parmeggiani、Enrico Faggi、Claudia Bonaccini、Paola Gratteri、Lyann Sim、Tracey M. Gloster、Shirley Roberts、Gideon J. Davies、David R. Rose、Andrea Goti
DOI:10.1002/chem.200801578
日期:2009.2.2
Selective glucosylation: Total synthesis of naturally occurring casuarine (1) and the first total synthesis of casuarine 6‐O‐α‐glucoside (2) were achieved through complete stereoselective nitrone cycloaddition, Tamao–Fleming oxidation and selective α‐glucosylation as key steps. Biological assays of the two compounds proved their strong and selective inhibitory properties towards glucoamylase NtMGAM and
选择性糖基化:通过完全立体选择性硝酮环加成,Tamao-Fleming氧化和选择性α-葡萄糖基化为关键步骤,实现了天然木麻黄的全合成(1)和木麻黄的6 - O -α-葡萄糖苷的首次全合成(2)。两种化合物的生物学分析证明它们分别对葡糖淀粉酶NtMGAM和海藻糖酶Tre37A具有强大的选择性抑制特性,这使它们成为这些酶的最强抑制剂。