(6S,9R)-6-(2,3-Difluorophenyl)-6,7,8,9-tetrahydro-9-[[tris(1-methylethyl)silyl]oxy]-5H-cyclohepta[b]pyridin-5-one

(6S,9R)-6-(2,3-difluorophenyl)-6,7,8,9-tetrahydro-9-[[triisopropylsilyl]oxy]-5H-cycloheptatrien[B]pyridin-5-one is a pharmaceutical chemical intermediate that can be used in the production of the drug molecule Remegapan.

(6S,9R)-6-(2,3-Difluorophenyl)-6,7,8,9-tetrahydro-9-[[triisopropylsilyl]oxy]-5H-cycloheptatrieno[B]pyridin-5-one is a cycloheptanone-pyridinium organic compound with a reactive hydroxyl reactive group protected by a silyl unit in its structure, which can be hydrolyzed to remove the silyl protecting group under acidic conditions. In addition, its structure contains a carbonyl α-carbon atom chiral center, which is sensitive to alkalis and is prone to undergo enolic reciprocal isomerism under the action of bases leading to the disappearance of its chirality.