Formal Synthesis of Merrilactone A Using a Domino Cyanide 1,4-Addition-Aldol Cyclization

被引:34
作者
Nazef, Naim [1 ]
Davies, Robert D. M. [3 ]
Greaney, Michael F. [2 ]
机构
[1] Univ Edinburgh, Sch Chem, Edinburgh EH9 3JJ, Midlothian, Scotland
[2] Univ Manchester, Sch Chem, Manchester M13 9PL, Lancs, England
[3] AstraZeneca, Mereside, Macclesfield SK10 4TG, Cheshire, England
基金
英国工程与自然科学研究理事会;
关键词
ESTERS; ALDOL; ENANTIOMER;
D O I
10.1021/ol301513h
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A formal synthesis of merrilactone A has been completed using a domino 1,4-addition-aldol process as the key step. Both iodo- and cyano-1, 4-addition-aldol cyclizations were productive in forming the highly hindered C1-C9 bond linking vic-quaternary and tertiary stereocenters. The latter method was used to complete a formal total synthesis of the natural product.
引用
收藏
页码:3720 / 3723
页数:4
相关论文
共 30 条
[21]   Toward a total synthesis of the novel neurotrophic sesquiterpene merrilactone A: a RCM and [2+2]-photocycloaddition based approach to framework construction [J].
Mehta, G ;
Singh, SR .
TETRAHEDRON LETTERS, 2005, 46 (12) :2079-2082
[22]   A synthetic pathway to either enantiomer of merrilactone A [J].
Meng, ZY ;
Danishefsky, SJ .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (10) :1511-1513
[23]   Access to Polyfunctionalized Diquinanes, Hydrindanes, and Decalines via TiCl4 Promoted Michael-Aldol and Baylis-Hillman Reactions [J].
Ressault, Blandine ;
Jaunet, Alexis ;
Geoffroy, Philippe ;
Goudedranche, Sebastien ;
Miesch, Michel .
ORGANIC LETTERS, 2012, 14 (01) :366-369
[24]   Enantioselective Synthesis of β-Iodo Morita-Baylis-Hillman Esters by a Catalytic Asymmetric Three-Component Coupling Reaction [J].
Senapati, Bidyut Kumar ;
Hwang, Geum-Sook ;
Lee, Sungil ;
Ryu, Do Hyun .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2009, 48 (24) :4398-4401
[25]   Synthesis of (±)-Merrilactone A and (±)-Anislactone A [J].
Shi, Lei ;
Meyer, Karsten ;
Greaney, Michael F. .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2010, 49 (48) :9250-9253
[26]   Total Synthesis and Absolute Stereochemical Assignment of Kibdelone C [J].
Sloman, David L. ;
Bacon, Jeffrey W. ;
Porco, John A., Jr. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (26) :9952-9955
[27]   CONTROL OF RING JUNCTION STEREOCHEMISTRY VIA RADICAL CYCLIZATION [J].
STORK, G ;
KAHN, M .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1985, 107 (02) :500-501
[28]   DEPROTECTION OF ACETALS AND SILYL ETHERS USING SOME PI-ACCEPTORS [J].
TANEMURA, K ;
SUZUKI, T ;
HORAGUCHI, T .
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1994, 67 (01) :290-292
[29]   Intramolecular tandem Michael-type addition/aldol cyclization induced by TiCl4-R4NX combinations [J].
Yagi, K ;
Turitani, T ;
Shinokubo, H ;
Oshima, K .
ORGANIC LETTERS, 2002, 4 (18) :3111-3114
[30]  
YOUNG SD, 1987, HETEROCYCLES, V26, P3081