Diastereodivergent Synthesis of
<i>Syn</i>
‐ and
<i>Anti</i>
‐9‐Hydroxyhomoisoflavanone and its Application to the Total Syntheses of (±)‐Homoferrugenone and (±)‐Portulacanone F
作者:Sanha Lee、Sangil Kwon、Joonseong Hur、Seung‐Yong Seo
DOI:10.1002/adsc.202200642
日期:2022.10.18
The diastereodivergent synthesis of syn- and anti-9-hydroxyhomoisoflavanone from various chromones and carbaldehydes is described. The synthetic approaches involving the reductive aldol reaction or the Morita-Baylis-Hillman reaction followed by syn-selective 1,4-reduction provide both diastereomers of β-hydroxy chroman-4-ones in 51–98% yield with anti (2 : 1–16 : 1 anti/syn) or 22–80% yield with syn
描述了从各种色酮和甲醛合成顺-和抗-9-羟基高异黄酮的非对映发散合成。涉及还原性羟醛反应或 Morita-Baylis-Hillman 反应以及顺式选择性 1,4-还原的合成方法以 51-98% 的产率提供了β-羟基 chroman-4-ones 的两种非对映异构体和抗(2:1 –16 : 1 anti / syn ) 或 22–80% syn (5 : 1–48 : 1 syn / anti) 非对映选择性。通过第一次全合成阐明了围绕两种 9-羟基高异黄酮、高铁酮和马齿苋 F 立体化学的模糊性。
David; v. Kostanecki, Chemische Berichte, 1903, vol. 36, p. 126,127
作者:David、v. Kostanecki
DOI:——
日期:——
Pfeiffer; Emmer, Chemische Berichte, 1920, vol. 53, p. 949
作者:Pfeiffer、Emmer
DOI:——
日期:——
Synthesis, Antiproliferative, and c-Src Kinase Inhibitory Activities of 4-Oxo-4<i>H</i>-1-benzopyran Derivatives
作者:Karam Chand、Rakesh K Tiwari、Sumit Kumar、Amir Nasrolahi Shirazi、Sweta Sharma、Erik V Van der Eycken、Virinder S Parmar、Keykavous Parang、Sunil K Sharma
DOI:10.1002/jhet.2106
日期:2015.3
A new class of 4‐oxo‐4H‐1‐benzopyran derivatives were synthesized and their antiproliferative activity examined against a panel of three human cancer cell lines, that is, breast carcinoma (MDA‐MB‐468), ovarian adenocarcinoma (SK‐OV‐3), and colorectal adenocarcinoma (HT‐29). Two compounds, that is, 3‐hexyl‐7,8‐dihydroxy‐4‐oxo‐4H‐1‐benzopyran and (E)‐ethyl 3‐(7‐methoxy‐4‐oxo‐4H‐1‐benzopyran‐3‐yl)acrylate were found to be potent against all three cancer cell lines studied at 50 μM concentration. Also, the inhibitory potency of the compounds was evaluated against active Src kinase. A few of these compounds exhibited modest Src kinase inhibitory activity (IC50 = 52–57 μM). Structure‐activity relationship studies with respect to the nature and position of substituents on the lead compounds could be further exploited for the design and development of more potent antiproliferative agents and/or Src kinase inhibitors.
Ishwar-Dass et al., Proceedings - Indian Academy of Sciences, Section A, 1953, # 37, p. 599,608