Then, these compounds were further reduced with sodium borohydride to form 4-benzyl-3-methyl-1 - (4-nitrophenyl) - 1H-pyrazol-5-ol.
Sau đó, các dẫn chất này tiếp tục được khử hoá bằng natri borohydrid để tạo ra 4-benzyl-3-methyl-1-(4-nitrophenyl)-1H-pyrazol-5-ol.