1a,10b-Dihydro-6H-dibenz(b,f)oxiren(d)azepin-6-carboxylic acid 2-(methylsulfonyl)ethyl ester 66849-47-6 6H-Dibenz(b,f)oxiren(d)azepine-6-carboxylic acid, 1a,10b-dihydro-, 2-(methylsulfonyl)ethyl ester