pyridine; dimethyl sulfoxide; dicyclohexyl-carbodiimide; trifluoroacetic acid in benzene 1) 0 deg C 2) RT, 24 h;
参考文献
Reese, Colin B.; Thompson, Elizabeth A.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1988 , p. 2881 - 2886
