Carbamoyloxa-Bridged Cyclophanes: Macrocyclization by Double Transesterification of Dimethyl m-Xylylenedicarbamate with α,ω-Dihydroxy Compounds - Irie, Shin; Yamamoto, Makoto; Kishikawa, Keiki; Kohmoto, Shigeo; Yamada, Kazutoshi (Synthesis, 1995)