1408075-48-8Relevant academic research and scientific papers
Synthesis of Electron-Deficient Heteroaromatic 1,3-Substituted Cyclobutyls via Zinc Insertion/Negishi Coupling Sequence under Batch and Automated Flow Conditions
Tissot, Matthieu,Body, Nathalie,Petit, Sylvain,Claessens, Jehan,Genicot, Christophe,Pasau, Patrick
supporting information, p. 8022 - 8025 (2019/01/04)
Synthesis of 1,3-substituted cyclobutyls enabled by zinc insertion into functionalized iodocyclobutyl derivatives followed by Negishi coupling with halo-heteroaromatics is reported. Two distinct sets of conditions were developed; the first involved a two-step batch protocol using activated Rieke zinc, and the second involved a multistep continuous flow process. Both methods showed complementarity and allowed for rapid access to these medicinally relevant motifs, the possibility of scaling up, and automation for library synthesis.
Benzimidazole derivatives
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Page 38, (2010/11/30)
This invention provides compounds which are represented by a general formula [I] [in which X stands for hydrogen or halogen; B stands for halogen, cyano or optionally fluorine-substituted lower alkyl; D stands for a 3-10 membered aliphatic nitrogen-containing heterocyclic group; R3, R4 and R5 may be same or different, and each stands for hydrogen, lower alkyl optionally having substituent group(s) and the like; and a is 0 or 1]. These compounds exhibit high affinity to nociceptin receptors and whereby inhibit actions of nociceptin, and are useful as an analgesic, antiobestic, agent for ameliorating brain function, treating agents for Alzheimer's disease and dementia, and therapeutic agents for schizophrenia, neurodegenerative diseases, depression, diabetes insipidus, polyuria, hypotension and the like.
THE TORQUOSELECTIVITY OF ELECTROCYCLIC REACTIONS OF 3-DONOR-3-ACCEPTOR-SUBSTITUTED CYCLOBUTENES
Niwayama, Satomi,Wang, Ying,Houk, K. N.
, p. 6201 - 6204 (2007/10/02)
Theory predicts that electron donors have larger outward rotation preferences than acceptors in thermal ring opening of cyclobutenes.Experimental verifications are presented for several 3,3-disubstituted cyclobutenes.
