Synthetic studies on Ecteinascidin-743: synthesis of building blocks through Sharpless asymmetric dihydroxylation and aza-Michael reactions

被引:50
作者
Chandrasekhar, S. [1 ]
Reddy, N. Ramakrishna [1 ]
Rao, Y. Srinivasa [1 ]
机构
[1] Indian Inst Chem Technol, Organ Div 1, Nat Prod Lab, Hyderabad 500007, Andhra Pradesh, India
关键词
ecteinascidin-743; tetrahydroisoquinolines; Heck reaction; aza-Michael reaction; Baeyer-Villiger reaction; ANTI-TUMOR ANTIBIOTICS; ABC RING MODEL; ENANTIOSELECTIVE SYNTHESIS; PRACTICAL SYNTHESIS; CARIBBEAN TUNICATE; NATURAL-PRODUCT; AMINO-ACID; EFFICIENT; DRUG; CONSTRUCTION;
D O I
10.1016/j.tet.2006.09.056
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A practical and an efficient synthesis of three building blocks of tetrahydroisoquinoline alkaloid Ecteinascidin-743 was accomplished, starting from readily available piperonal, 2-methyl anisole, and veratraldehyde. A combination of Vilsmeier-Haack reaction and Sharpless asymmetric dihydroxylation was employed for the synthesis of building blocks A and B whereas a Heck reaction in PEG-2000 and aza-Michael reactions were employed for the synthesis of building block C. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:12098 / 12107
页数:10
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