2-(Hexahydro-1,4-thiazepin-4-yl)ethyl diphenylacetate 2-(Tetrahydro-1,4-thiazepin-4(5H)-2-yl)ethyl alph a-phenylbenzeneacetate 87565-58-0 Benzeneacetic acid, alpha-phenyl-, 2-(tetrahydro-1,4-thiazepin-4(5H)-2-yl)ethyl ester