Synthetic Study of HIF-1α Inhibitor, Manassantin B
HIF-1α抑制剂Manassantin B的合成研究
基本信息
- 批准号:18590097
- 负责人:
- 金额:$ 2.27万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2006
- 资助国家:日本
- 起止时间:2006 至 2007
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This project aimed to develop a novel synthetic strategy of manassantin B and the derivatives having potent inhibitory activity against HI-α, which is considered as an intermediate of cancer, cerebral infarction, and cardiac infarction.1) Synthesis of tetrasubstituted 2,5-diayl THF skeletonTo establish a synthetic method of 2,5-daryl THF skeleton, we have investigated a diastereoselective Michael addition to γ-oxy-α,β-unsaturated ketone. As a result, we found that the reaction proceeded in good yield and with excellent diastereoselectivity to give the anti-isomer by using Gilman reagent (71%, 30:1 dr) or Gilman reagent and BF_3・ether (72%, 33:1 dr). Subsequent α-methylation of the ketone also underwent in almost quantitatively with 14:1 dr when KHMDS was employed as a base in the presence of HMPA. Finally, re1-(7S,8S,7'R,8'S)-7,.7'-epoxylignan skeleton was constructed via THF ring formation.2) Synthetic research of chiral tetrasubstituted 2,5-diayl THF skeletonTo construct two of four stereogenic centers enantioselectively, asymmetric [2,3]-Wittig rearrangement of functionalized allyl benzyl ethers was examined as a key reaction. Using a chiral di-tert-butyl bis(oxazoline) ligand, the reaction proceeded with excellent diastereo- and enantioselectivity when no methoxy substituent was present at the ortho-position on the benzyl group. On the other hand, the enantioselectivity was drastically decreased in the presence of an ortho-methoxy group. Scope and limitation of the reaction were investigated for application to the target molecules.
本项目旨在开发一种新的合成方法来合成具有较强抑制HI-α活性的化合物,该化合物被认为是癌症、脑梗塞和心肌梗死的中间体。1)四取代2,5-二取代四氢呋喃骨架的合成为了建立2,5-达里基四氢呋喃骨架的合成方法,我们研究了γ-oxy-α,β-不饱和酮的非对映选择性Michael加成反应。结果表明,用Gilman试剂(71%,30:1 DR)或Gilman试剂与BF_3·乙醚(72%,33:1 DR)反应生成对映异构体,产率高,非对映选择性好。当KHMDS作为碱基时,在HMPA存在下,酮的随后的α甲基化也几乎以14:1的DR进行。2)手性四取代2,5-二酰基四氢呋喃骨架的合成研究为了选择性地构建四个立体中心中的两个,官能化的烯丙基苄基醚的不对称[2,3]-Wittig重排反应。使用手性二叔丁基双(恶唑啉)配体,当苯基的邻位上没有甲氧基取代基时,反应具有良好的非对映选择性和对映选择性。另一方面,在邻甲氧基的存在下,对映体选择性大大降低。考察了该反应的范围和局限性,并将其应用于目标分子。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
rel-(7S,8S,7'R,8'S)-7,7'-エポキシリグナン骨格の立体選択的構築法の開発
rel-(7S,8S,7R,8S)-7,7-环氧木脂素骨架立体选择性构建方法的开发
- DOI:
- 发表时间:2007
- 期刊:
- 影响因子:0
- 作者:MAEZAKI;Naoyoshi;北村 麻理愛;Maria Kitamura;北村 麻理愛;広川 美視;Yoshimi Hirokawa;広川 美視;北村 麻理愛
- 通讯作者:北村 麻理愛
2,5-ジアリールTHFリグナン類の合成研究
2,5-二芳基THF木脂素的合成研究
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:MAEZAKI;Naoyoshi;北村 麻理愛;Maria Kitamura;北村 麻理愛;広川 美視;Yoshimi Hirokawa;広川 美視;北村 麻理愛;Maria Kitamura;北村 麻理愛;北村 麻理愛;Maria Kitamura;北村 麻理愛
- 通讯作者:北村 麻理愛
「研究成果報告書概要(和文)」より
摘自《研究结果报告摘要(日文)》
- DOI:
- 发表时间:2005
- 期刊:
- 影响因子:0
- 作者:Kawauchi;et. al.;Nishimura et al.;Dezawa et al.;Yoshizawa et al.;星野 幹雄;星野 幹雄
- 通讯作者:星野 幹雄
Systematic Synthesis of Diastereomeric THE Ring Cores and Total Synthesis of Anti-Tumor Annonaceous Acetogenins
非对映THE环核的系统合成及抗肿瘤番荔枝苷的全合成
- DOI:
- 发表时间:2006
- 期刊:
- 影响因子:0
- 作者:MAEZAKI;Naoyoshi
- 通讯作者:Naoyoshi
Development of 2, 5-Diaryl THF Skeleton Using[2, 3]-Wittig Rearrangement as a Key Reaction
使用 [2, 3]-Wittig 重排作为关键反应开发 2, 5-二芳基 THF 骨架
- DOI:
- 发表时间:2008
- 期刊:
- 影响因子:0
- 作者:MAEZAKI;Naoyoshi;北村 麻理愛;Maria Kitamura
- 通讯作者:Maria Kitamura
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MAEZAKI Naoyoshi其他文献
MAEZAKI Naoyoshi的其他文献
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{{ truncateString('MAEZAKI Naoyoshi', 18)}}的其他基金
Development of antioxidant with lignan skeleton
木脂素骨架抗氧化剂的研制
- 批准号:
21590032 - 财政年份:2009
- 资助金额:
$ 2.27万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Development of Systematic Synthesis of Antitumor Annonaceous Acetogenins and Evaluation of Biological Activity
抗肿瘤番荔枝苷的系统合成及生物活性评价
- 批准号:
16590006 - 财政年份:2004
- 资助金额:
$ 2.27万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Development of Efficient Synthetic Method of Antitamor Annonaceous Acetogenins and Investigation of Highly Potent Derivatives
抗炎番荔枝苷高效合成方法的开发及高效衍生物的研究
- 批准号:
14572006 - 财政年份:2002
- 资助金额:
$ 2.27万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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