a solution of the azide xvii in a solvent such as for example tetrahydrofuran and the like and rapid quenching with an acid such as for example acetic acid and the like to afford the azido oxazolidinone xii the azido oxazolidinone xii is hydrolyzed with lithium hydroxide in hydrogen peroxide to afford the azido acid xi treatment of the azido acid xi with hydrogen in the presence of a catalyst such as for example palladium on carbon and the like in tetrahydrofuran and in hydrochloric acid affords r u03b1 amino 10 11 dihydro 5h dibenzo a d cyclo heptene 5 acetic acid hydrochloride r ih s u03b1 amino 10 11 dihydro 5h dibenzo a d cycloheptene 5 acetic acid hydrochloride s ii is prepared using the same methodology as used to prepare r u03b1 amino 10 11 dihydro 5h dibenzo a d cycloheptene 5 acetic acid hydrochloride by substituting 4s 5r 4 methyl 5 phenyl 2 oxazolidinone xixa for 4r 5s 4 methyl 5 phenyl 2 oxazolidinone xix as outlined in scheme iv the synthesis of d u03b1 amino 5h dibenzo a d cycloheptene 5 acetic acid r ij is outlined in scheme v and follows a procedure similar to the one outlined in scheme iii the reduction of the azido acid xxi is best achieved chemically using such as for example stannous chloride in a solvent such as methanol in order to avoid the reduction of the double bond which could occur under catalytic hydrogenation conditions the l u03b1 amino 5h dibenzo a d cycloheptene 5 acetic acid s ik is prepared by the same methodology as outlined.