Total Synthesis of Cyclic Tetrapeptide FR235222, a Potent Immunosuppressant that Inhibits Mammalian Histone Deacetylases
作者:Weiqing Xie、Bin Zou、Duanqing Pei、Dawei Ma
DOI:10.1021/ol050991r
日期:2005.6.1
[structure: see text] The total synthesis of FR235222, a potent immunosuppressant with in vivo activities, has been achieved. The key steps include assembling its (2S,9R)-2-amino-9-hydroxy-8-oxodecanoic acid residue via an olefin cross-metathesis of a methyl (R)-lactate-derived homoallyl ketone with protected allyl amino acid and constructing its trans-(2R,4S)-4-methylproline unit from protected (R)-pyroglutamic
[结构:见正文]已经实现了具有体内活性的强效免疫抑制剂FR235222的全合成。关键步骤包括通过(R)-乳酸盐甲酯衍生的均烯丙基酮与烯丙基氨基酸的烯烃交叉复分解组装其(2S,9R)-2-氨基-9-羟基-8-氧代十二烷酸残基并构建通过七个步骤从受保护的(R)-焦谷氨酸制备其反式((2R,4S)-4-甲基脯氨酸)单元。