6134-54-9Relevant articles and documents
N-Atom Deletion in Nitrogen Heterocycles
Qin, Haitao,Cai, Wangshui,Wang, Shuang,Guo, Ting,Li, Guigen,Lu, Hongjian
, p. 20678 - 20683 (2021/08/25)
Excising the nitrogen in secondary amines, and coupling the two residual fragments is a skeletal editing strategy that can be used to construct molecules with new skeletons, but which has been largely unexplored. Here we report a versatile method of N-atom excision from N-heterocycles. The process uses readily available N-heterocycles as substrates, and proceeds by N-sulfonylazidonation followed by the rearrangement of sulfamoyl azide intermediates, providing various cyclic products. Examples are provided of deletion of nitrogen from natural products, synthesis of chiral O-heterocycles from commercially available chiral β-amino alcohols, formal inert C?H functionalization through a sequence of N-directed C?H functionalization and N-atom deletion reactions in which the N-atom can serve as a traceless directing group.
As a new polyphenylenepolymethylenepolyisocyanate deriv. SGLT2 inhibitor
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Paragraph 0364-0365, (2016/10/09)
A compound with a diphenylmethane moiety having an inhibitory activity against sodium-dependent glucose cotransporter 2 (SGLT2) being present in the intestine and kidney is disclosed. A pharmaceutical composition including the compound as an active ingredient, which is useful for preventing or treating metabolic disorders, particularly diabetes is disclosed. A method for preparing the compound, and a method for preventing or treating metabolic disorders, particularly diabetes, by using the compound is provided.
SUBSTITUTED PARA-BIPHENYLOXYMETHYL DIHYDRO OXAZOLOPYRIMIDINONES, PREPARATION AND USE THEREOF
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Page/Page column 45, (2011/04/19)
The present invention relates to a series of substituted para-biphenyloxymethyl dihydro oxazolopyrimidinones of formula (I) as defined herein. This invention also relates to methods of making these compounds including novel intermediates. The compounds of