dimethyl 5,5-dimethyl-2,2-diphenyl-8-(2,4,6-trimethylphenyl)-6-oxa-1,7-diaza-5λ⁵-phosphabicyclo[3.3.0]octa-3,7-diene-3,4-dicarboxylate

3-(2,4,6-trimethylphenyl)-4,5,6,7,8,9-hexahydrocycloocta[d][1,2]oxazole

3-(2,4,6-trimethylphenyl)-4,5,6,7-tetrahydrocycloocta[d][1,2]oxazole

3-(2,4,6-trimethylphenyl)-6,7,8,9-tetrahydrocycloocta[d][1,2]oxazole

3-(2,4,6-trimethylphenyl)-3a,4,5,6a-tetrahydrofuro[3,2-d][1,2]oxazole