Cycloadditions in syntheses. XXXVII. Syntheses of 6-trifluoromethyl-1,2,4-triazines and -1,2,4-triazin-5-ones and their pericyclic reactions with olefins.
[EN] SUBSTITUTED TRIAZINONES AS THYROID HORMONE RECEPTOR AGONISTS [FR] TRIAZINONES SUBSTITUÉES EN TANT QU'AGONISTES DU RÉCEPTEUR DE L'HORMONE THYROÏDIENNE
[EN] SUBSTITUTED TRIAZINONES AS THYROID HORMONE RECEPTOR AGONISTS<br/>[FR] TRIAZINONES SUBSTITUÉES EN TANT QU'AGONISTES DU RÉCEPTEUR DE L'HORMONE THYROÏDIENNE
申请人:ECCOGENE SHANGHAI CO LTD
公开号:WO2021143706A1
公开(公告)日:2021-07-22
The application relates to a compound of Formula (I') or (I), or a pharmaceutically acceptable salt, hydrate, solvate, prodrug, stereoisomer, or tautomer thereof, which modulates the activity of thyroid hormone receptors, a pharmaceutical composition comprising a compound of Formula (I') or (I), and a method of treating or preventing a disease or disorder regulated by thyroid hormone.
Cycloadditions in syntheses. XXXVII. Syntheses of 6-trifluoromethyl-1,2,4-triazines and -1,2,4-triazin-5-ones and their pericyclic reactions with olefins.
6-Trifluoromethyl-1, 2, 4-triazines and -1, 2, 4-triazin-5-ones were synthesized to investigate the role of the trifluoromethyl group in their thermal as well as photochemical cycloaddition reactions with olefins. In photochemical 2+2 cycloaddition using the triazin-5-ones and -3, 5-diones, the activation of the imine function by the trifluoromethyl group is demonstrated and a new route to azetidine derivatives having a trifluoromethyl group is disclosed. In thermal 4+2 cycloaddition using the corresponding triazines, acceleration of the so-called inverse electron demand Diels-Alder reaction is demonstrated. Clarification of the mechanisms of these reactions and their use in the synthesis of azetidin-2-ones and pyridines having a trifluoromethyl group are also described.