Author/Authors :
Cram، نويسنده , , Donald J and Helgeson، نويسنده , , Roger C and Knobler، نويسنده , , Carolyn B and Maverick، نويسنده , , Emily F، نويسنده ,
Abstract :
Two new hemicarcerand hosts with tosylamide bridges are found to be relatively selective binders. The tosyl groups could not be removed without destroying the hosts. A crystal structure of the smaller host suggests that two of the four 28-membered ring portals are rigidly locked in an open position.
