Bridge compound; boric acid and pinacol borate; chain compound Chiral intermediates; fused pyridine ring amines; cyclohexane; fluoroazetidine and fluorooxetane; fused aromatic hydrocarbons; fused rings; pyrrolidine derivatives; spiro compounds; substituted prolines; Azetidine, cyclopropane, cyclopentene, oxetane; 3,4-disubstituted tetrahydropyran; 3-azabicyclo[3.1.0] hexane derivative