Toluene-p-sulphonylchloride (4.9 g, 26 mmol) in acetone (42
ml) and sodium hydrogen carbonate (4.4 g, 52 mmol) in water
(147 ml) were added dropwise over 2 h to a stirred solution of
erythromycin A oxime (2) (9.6 g, 13mmol) in acetone (120 ml)
at 0 - 5 "C.
是对甲苯磺酰氯丙酮液滴加之后再滴加碳酸氢钠水溶液还是 ，先把对甲苯磺酰氯丙酮液配好，后配碳酸氢钠水溶液，配好后混合滴加到红霉素A肟的丙酮溶液中？
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+2/98
