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天然产物Combretastatin A-1和Combretastatin B-1的合成 被引量:1

Synthesis of Natural Products Combretastatin A-1 and Combretastatin B-1
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摘要 基于Perkin反应策略合成了具有强效抗肿瘤、抗血管活性的天然产物Combretastatin A-1(CA1)和Combretastatin B-1(CB1).以2,3,4-三羟基苯甲醛(1)为起始物,经单甲基化反应得到2,3-二羟基-4-甲氧基苯甲醛(2),再经酚羟基保护得到2,3-二异丙基-4-甲氧基苯甲醛(3),该化合物与3,4,5-三甲氧基苯乙酸(4)发生Perkin反应分离得到E-2-(3,4,5-三甲氧基苯基)-3-(2',3'-二异丙氧基-4'-甲氧基)丙烯酸(E-5),经脱羧反应得到Z-3,4,4',5-四甲氧基-2',3'-二异丙氧基二苯乙烯(6),最后经脱保护反应得到CA1.另外,将E-2-(3,4,5-三甲氧基苯基)-3-(2',3'-二异丙氧基-4'-甲氧基)丙烯酸(E-5)脱去保护基得到E-2-(3,4,5-三甲氧基苯基)-3-(2',3'-二羟基-4'-甲氧基)丙烯酸(7),该化合物经脱羧-异构化反应得到E-3,4,4',5-四甲氧基-2',3'-二羟基二苯乙烯(E-CA1),最后经催化氢化得到CB1. A new synthetic protocol based on Perkin reaction for access to the antivascular and antitumor natu ral products combretastatin A-1 ( CA1 ) and combretastatin B-1 ( CB1 ) was developed. Starting from 2,3,4-tri- hydroxybenzaldehyde ( 1 ), 2,3-dihydroxy-4-methoxybenzaldehyde ( 2 ) could be readily obtained via monom ethylation, subsequent protection reaction was performed to afford the catechol protected intermediate 2,3-dii- sopropyloxy-4-methoxybenzylaldehyde (3). Perkin condensation between compound 3 and 3,4,5-trimethoxy- phenylacetic acid ( 4 ) gave E-2- ( 3,4,5 -trimethoxyphenyl ) -3 - ( 2', 3 '-diisopropyloxy-4 '-methoxybenzyl ) acrylic acid ( E-5 ) which underwent a decarboxylation reaction to afford Z-2', 3'-diiso-propyloxy-3,4,4', 5-tetrame- thoxystilbene (6) , and CA1 could then be obtained by deprotection reaction. In addition, E-2-(3,4,5-trime- thoxyphenyl) -3- ( 2', 3 '-dihydroxy-4'-methoxybenzyl) acrylic acid ( 7 ) could be obtained by deprotection reac- tion, followed by a decarboxylation-isomerization reaction to afford E-combrctastatinA-1 (E-CA1). Finally, CB1 could be obtained via catalytic hydrogenation.
出处 《高等学校化学学报》 SCIE EI CAS CSCD 北大核心 2013年第10期2313-2318,共6页 Chemical Journal of Chinese Universities
基金 国家自然科学基金(批准号:21272280 81201716) 广东省中国科学院全面战略合作项目(批准号:2009B091300125) 广东省战略新兴产业核心技术攻关项目(批准号:2011A081401002) "十二五"国家重大新药创制项目(批准号:2011ZX09202-10107) 浙江省医药卫生科学研究计划(批准号:2010KYA099) 广州市科技计划项目(批准号:2012J4300097)资助
关键词 PERKIN反应 COMBRETASTATIN A-1 COMBRETASTATIN B-1 抗肿瘤 Perkin reaction Combretastatin A-l Combretastatin B-l Antitumor
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参考文献22

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二级参考文献118

共引文献58

同被引文献15

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