(1R,3R)-methyl 3-((S)-1-amino-4-tert-butoxy-4-oxobutan-2-yl)-2,2-dimethylcyclobutanecarboxylate 、
1,3,5-triisocyanatobenzene 以
甲苯 为溶剂,
以253 mg的产率得到trimethyl 3,3',3''-((2S,2'S,2''S)-(((benzene-1,3,5-triyltris(azanediyl))tris(carbonyl))tris(azanediyl))tris(4-(tert-butoxy)-4-oxobutane-1,2-diyl))(1R,1'R,1''R,3R,3'R,3''R)-tris(2,2-dimethylcyclobutane-1-carboxylate)