反应条件
1: phytosphingosine sulphate With sodium methylate in methanol; isobutyl methylketone T=55°C; P=760.051 Torr; Fixed-Bed reactor; 2: stearic acid methyl ester With Novozym 435 in isobutyl methylketone T=80°C; P=600.06 Torr; 24 h; Enzymatic reaction; Product distribution / selectivity;