Total synthesis of the antitumor antibiotic (±)-streptonigrin: first- and second-generation routes for de novo pyridine formation using ring-closing metathesis.

Total synthesis of the antitumor antibiotic (±)-streptonigrin: first- and second-generation routes for de novo pyridine formation using ring-closing metathesis.
复制标题

DOI:
10.1021/jo402388f
复制
发表时间:
2013-12-20
期刊:
The Journal of organic chemistry
影响因子:
--
通讯作者:
Baker DB
Baker DB
中科院分区:
其他
文献类型:
--
作者:
Donohoe TJ;Jones CR;Kornahrens AF;Barbosa LC;Walport LJ;Tatton MR;O'Hagan M;Rathi AH;Baker DB

文献摘要

参考文献

被引文献

相似文献

描述了(±)-链黑菌素的全合成,它是一种强效的四环氨基喹啉-5,8-二酮抗肿瘤抗生素,于20世纪70年代进入II期临床试验。描述了两种构建关键的五取代吡啶片段的路线,两者都依赖于闭环复分解,但在环化前体的取代和复杂性方面不同。这两条路线都是短而高产的,第二代方法最终以14个线性步骤和11%的总收率从廉价的乙醛酸乙酯提供(±)-链黑菌素。这种合成将允许设计和创建类似药物的后期天然产物类似物,以解决药理学限制。此外,在一个具有挑战性的不对称铃木宫浦交叉偶联反应中的一些手性配体的评估,使对映体富集(高达42%ee)的合成链黑菌素中间体首次制备。
The total synthesis of (±)-streptonigrin, a potent tetracyclic aminoquinoline-5,8-dione antitumor antibiotic that reached phase II clinical trials in the 1970s, is described. Two routes to construct a key pentasubstituted pyridine fragment are depicted, both relying on ring-closing metathesis but differing in the substitution and complexity of the precursor to cyclization. Both routes are short and high yielding, with the second-generation approach ultimately furnishing (±)-streptonigrin in 14 linear steps and 11% overall yield from inexpensive ethyl glyoxalate. This synthesis will allow for the design and creation of druglike late-stage natural product analogues to address pharmacological limitations. Furthermore, assessment of a number of chiral ligands in a challenging asymmetric Suzuki–Miyaura cross-coupling reaction has enabled enantioenriched (up to 42% ee) synthetic streptonigrin intermediates to be prepared for the first time.
DOI: 10.1016/j.bmc.2004.01.021
发表时间: 2004-04-01
影响因子: 3.5
作者:
Fryatt, T;Pettersson, HI;Moody, CJ
通讯作者: Moody, CJ
DOI: 10.1021/ja00842a033
发表时间: 1975-01-01
影响因子: 15
作者:
CHIU, YYH;LIPSCOMB, WN
通讯作者: LIPSCOMB, WN
DOI: 10.1021/ol702684d
发表时间: 2008-01-17
期刊: ORGANIC LETTERS
影响因子: 5.2
作者:
Donohoe, Timothy J.;Fishlock, Lisa P.;Procopiou, Panayiotis A.
通讯作者: Procopiou, Panayiotis A.
DOI: 10.1139/o76-034
发表时间: 1976-01-01
期刊: CANADIAN JOURNAL OF BIOCHEMISTRY
影响因子: --
作者:
CONE, R;HASAN, SK;MORGAN, AR
通讯作者: MORGAN, AR
DOI: 10.1016/j.tet.2009.07.076
发表时间: 2009-10-31
期刊: TETRAHEDRON
影响因子: 2.1
作者:
Donohoe, Timothy J.;Bower, John F.;Callens, Cedric K. A.
通讯作者: Callens, Cedric K. A.