Thiophosphoric acid O-[(2R,3S,4R,5R)-5-(4-benzoylamino-2-oxo-2H-pyrimidin-1-yl)-3,4-dihydroxy-tetrahydro-furan-2-ylmethyl] ester O',O''-bis-(4-nitro-phenyl) ester 在
ammonium hydroxide 、
potassium tert-butylate 作用下,
生成 、 (2S,4aR,6R,7R,7aS)-6-(4-Amino-2-oxo-2H-pyrimidin-1-yl)-7-hydroxy-2-thioxo-tetrahydro-2λ
5-furo[3,2-d][1,3,2]dioxaphosphinin-2-ol anion