1309359-79-2Relevant academic research and scientific papers
Total synthesis of (±)-alopecuridine and its biomimetic transformation into (±)-sieboldine A
Zhang, Xiao-Ming,Tu, Yong-Qiang,Zhang, Fu-Min,Shao, Hui,Meng, Xing
, p. 3916 - 3919 (2011)
The features you need: The first total synthesis of lycopodium alkaloid alopecuridine has been achieved in 13 steps in the longest linear sequence, and its biomimetic conversion into sieboldine A has been validated through a two-step oxidation. The synthesis features a semipinacol rearrangement of a functionalized medium-sized ring and an intramolecular pinacol coupling mediated by SmI2 (see scheme; Boc=tert-butoxycarbonyl).
A Facile Synthesis of N -Boc-azocan-5-one
Morales-Chamorro, Maricela,Vázquez, Alfredo
, p. 842 - 847 (2019)
The azacycloalkane 1-azocan-5-one is embedded in the structure of several products of natural origin displaying a variety of bioactivities. Two convenient and straightforward routes were developed to synthesize N -Boc-azocan-5-one from readily available raw materials featuring a ring-closing metathesis (RCM) reaction as the key step.
Catalytic Ring Expansions of Cyclic Alcohols Enabled by Proton-Coupled Electron Transfer
Zhao, Kuo,Yamashita, Kenji,Carpenter, Joseph E.,Sherwood, Trevor C.,Ewing, William R.,Cheng, Peter T. W.,Knowles, Robert R.
, p. 8752 - 8757 (2019/06/13)
We report here a catalytic method for the modular ring expansion of cyclic aliphatic alcohols. In this work, proton-coupled electron transfer activation of an allylic alcohol substrate affords an alkoxy radical intermediate that undergoes subsequent C-C bond cleavage to furnish an enone and a tethered alkyl radical. Recombination of this alkyl radical with the revealed olefin acceptor in turn produces a ring-expanded ketone product. The regioselectivity of this C-C bond-forming event can be reliably controlled via substituents on the olefin substrate, providing a means to convert a simple N-membered ring substrate to either n+1 or n+2 ring adducts in a selective fashion.
BRADYKININ 1 RECEPTOR ANTAGONISTS
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Page/Page column 68, (2008/06/13)
The invention encompasses novel compounds and pharmaceutically acceptable derivatives thereof, pharmaceutical compositions and methods for treatment of diseases mediated by B1 bradykinin receptor.
