C47H54O7S
5,11,17,23-tetra-t-butyl-25,26,27,28-tetrahydroxycalix-4-arene
5-(3-bromoprop-1-oxy)-11,17,23-tris(1,1-dimethylethyl)-25,26,27,28-tetrahydroxycalix[4]arene
5-(4-bromobut-1-oxy)-11,17,23-tris(1,1-dimethylethyl)-25,26,27,28-tetrahydroxycalix[4]arene
5-(7-bromohept-1-oxy)-11,17,23-tris(1,1-dimethylethyl)-25,26,27,28-tetrahydroxycalix[4]arene