Total synthesis of the aromatase inhibitor dihydroisocoumarin via protective opening of lactones
作者:D. Chanti Babu、Ch. Bhujanga Rao、D. Ramesh、S. Raghavendra Swamy、Y. Venkateswarlu
DOI:10.1016/j.tetlet.2012.05.012
日期:2012.7
Asymmetric total synthesis of a dihydroisocoumarin, (3R,4R)-(−)-6-methoxy-1-oxo-3-pentyl-3,4-dihydro-1H-isochromen-4-yl acetate (1) starting from commercially available m-anisic acid is described. Herein, we depict the use of protective opening of lactones and construction of δ lactone. The synthesis involves Wittig, Grubbs cross metathesis, and Sharpless dihydroxylation reactions.
二氢异香豆素,(3 R,4 R)-(-)-6-甲氧基-1-氧代-3-戊基-3,4-二氢-1 H-异氰酸-4-乙酸丁酯的不对称全合成反应(1)起始从可商购的米-anisic酸进行说明。在本文中,我们描述了内酯保护性开放的使用和δ内酯的构建。合成涉及Wittig,Grubbs交叉复分解和Sharpless二羟基化反应。