Trichloro-acetic acid 3-(2-hydroxy-ethoxy)-2,2-bis-(2-hydroxy-ethoxymethyl)-propyl ester 、
2-azi-1-(2,3,4,6-tetra-O-benzoyl-α-D-mannopyranosyloxy)-5-oxa-7-thiaoctane 在
N-碘代丁二酰亚胺 、 4 A molecular sieve 、
四丁基三氟甲磺酸铵 作用下,
生成 2,2,2-tris[10-azi-11-(2,3,4,6-tetra-O-benzoyl-α-D-mannopyranosyloxy)-2,5,7-trioxaundecyl]ethyl trichloroacetate