10.1021/ja00365a087
The research includes three distinct studies. The first study investigates the biosynthetic pathway of streptonigrin, utilizing [U - L3C6] glucose to elucidate the complex process, with erythrose-4-phosphate and 4-aminoanthranilic acid being key intermediates. The second study details the synthesis of a helical ferrocene. It involves creating a helical structure with cyclopentadienyl rings, using 2,7-dihydroxynaphthalene, vinyl ketone cyclization, and photocyclization. The final product is obtained by reacting the lithium salt of the helical structure with FeCl?. The third study examines the catalytic hydrolysis of esters of p-nitrophenol bound by amylose in a Me?SO-H?O mixed-solvent system, focusing on the conformational changes and rate accelerations in this unique environment.