Total synthesis of Δ12-PGJ2, 15-deoxy-Δ12,14-PGJ2, and related compounds
作者:Hukum P. Acharya、Yuichi Kobayashi
DOI:10.1016/j.tetlet.2003.11.143
日期:2004.2
α′-position with the ω-chain aldehydes followed by dehydration to produce the title compounds. In a similar manner, 5-dehydro compounds (acetylene analogues) were synthesized successfully. In addition, palladium-catalyzed reaction of 4-cyclopentene-1,3-diol monoacetate with methyl malonate, the first step of the synthesis, was improved to afford the product in high yield by using t-BuOK or LDA in place
Total synthesis of prostaglandin J natural products and their intermediates
申请人:California Institute of Technology
公开号:US10995049B2
公开(公告)日:2021-05-04
The present disclosure is directed to methods of preparing prostaglandin J natural products by stereoretentive metatheses reactions and intermediates used in the synthesis of these natural products, including the use of intermediates of Formula (I-A), where R1 is defined in the specification
Concise Syntheses of Δ<sup>12</sup>-Prostaglandin J Natural Products via Stereoretentive Metathesis
作者:Jiaming Li、Tonia S. Ahmed、Chen Xu、Brian M. Stoltz、Robert H. Grubbs
DOI:10.1021/jacs.8b12816
日期:2019.1.9
Δ12-Prostaglandin J family is recently discovered and has potent anticancer activity. Concise syntheses of four Δ12-prostaglandin Jnaturalproducts (7-8 steps in the longest linear sequences) are reported, enabled by convergent stereoretentive cross-metathesis. Exceptional control of alkene geometry was achieved through stereoretention.
Total Synthesis of Prostaglandin 15d-PGJ<sub>2</sub> and Investigation of its Effect on the Secretion of IL-6 and IL-12
作者:Julian Egger、Stefan Fischer、Peter Bretscher、Stefan Freigang、Manfred Kopf、Erick M. Carreira
DOI:10.1021/acs.orglett.5b02181
日期:2015.9.4
An efficient synthesis of 15-deoxy-Delta 12,14-prostaglandin J(2) (15d-PGJ(2), 1) is reported. The route described allows for diversification of the parent structure to prepare seven analogues of 1 in which the positioning of electrophilic sites is varied. These analogues were tested in SAR studies for their ability to reduce the secretion of proinflammatory cytokines. It was shown that the endocyclic enone is crucial for the bioactivity investigated and that the conjugated omega-side chain serves in a reinforcing manner.