First one, I need check Lit.; Second one, obviously benzylic methylene was oxidized to ketone and then intramoleular condensation.是什么意思_First one, I need check Lit.; Second one, obviously benzylic methylene was oxidized to ketone and then intramoleular condensation.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句