反应条件
hydrogen sulfide; benzoic acid anhydride; isopentyl nitrite 1.) pyridine-AcOH, r.t.; 2.) pyridine-AcOH, r.t., 6 h; 3.) pyridine-AcOH; method for regenerating free 5'-phosphate of deoxyribo(oligo)nucleotides from their phosphorodianilidate derivatives; Mechanism;