39968-95-1Relevant articles and documents
Synthetic method of bimatoprost
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Paragraph 0053-0058; 0077-0080, (2020/05/01)
The invention relates to a synthetic method of bimatoprost, and belongs to the technical field of chemical synthesis. According to the method, doxazosin is synthesized by adopting the following synthesis route different from the conventional technology, s
Stereoselective preparation of key intermediates for the synthesis of iso-, neuro- and phyto-prostane family members: Inaugural asymmetric synthesis of 17-E2c-dihomo- and 17-F2c-dihomo-isoprostanes
Gandini, Andrea,Amin, Ahmed A.,Amin, Hawraz Ibrahim M.,Corriero, Davide,Porta, Alessio,Zanoni, Giuseppe
, p. 2393 - 2396 (2018/04/12)
A practical methodology for the synthesis of key intermediates for isoprostane, neuroprostane and dihomo-isoprostane preparation has been described. The key strategy involved a three stage C-12 stereocenter inversion of the configuration of a Corey lacton
Stereospecific Synthesis of Fluoroalkenes by Silver-Mediated Fluorination of Functionalized Alkenylstannanes
Sommer, Heiko,Fürstner, Alois
, p. 558 - 562 (2017/01/18)
The known procedures for the conversion of alkenylstannanes into the corresponding fluoroalkenes suffer from largely variable yields and a limited compatibility with functional groups; most notably, protodestannation becomes a serious issue whenever protic sites are present in the substrate. Outlined in this paper is a convenient alternative with a much improved application profile, which is largely unperturbed by free alcohols and amides of all sorts. Key to success is the use of F-TEDA-PF6in combination with non-hygroscopic and bench-stable silver phosphinate (AgOP(O)Ph2) that acts as an essentially neutral, non-nucleophilic promotor and effective tin-scavenger at the same time. This new method opens many opportunities for late-stage fluorination of elaborate compounds far beyond the scope of the literature procedures, as witnessed by the preparation of a fluorinated macrolide antibiotic, a fluorinated prostaglandin derivative, and a set of fluorinated amino acid surrogates and peptide isosteres.