反応 #1161090

ord-4789c4aa08c7438ca9adf9f4393928c1

反応条件

詳細条件
See reaction.notes.procedure_details.

実験手順

In an analogous manner to that described in the first paragraph of Example 7, from 4-(6-amino-2-pyridyl)-3,4-dihydro-2,2-dimethyl-2H-1-benzopyran-6-carbonitrile there was obtained 2-amino-6-(6-cyano-3,4-dihydro-2,2-dimethyl-2H-1-benzopyran-4-yl)pyridine N-oxide of melting point 210°-212° C. (from isopropanol).

出典

DOI: 10.6084/m9.figshare.5104873.v1特許: US04971982uspto-grants-1990_11