1 6 1 3______________________________________ calc by the semi empirical equation str5 the sup 13 cnmr chemical shifts for compounds 1 2 7 and 8 appear intable ii below table ii______________________________________chemical shifts compoundsc atom 1 2 7 8 ______________________________________ 2 162 8 147 2 162 2 143 3 4 164 8 167 2 148 5 150 4 5 167 4 167 5 94 2 88 4 6 164 8 147 3 168 1 152 5 7 51 7 52 2 8 68 2 68 1 9 64 5 64 410 52 7 52 311 173 0 173 012 128 8 127 913 128 8 128 114 24 5 25 415 133 0 132 216 180 0 180 0______________________________________ 13 sub c nmr chemical shifts are reported in parts per million ppm fro external 13 sub cs2 in dmso d sub 6 and were recorded on a varian cft 20 spectrophotometer the sulfonyl n tosylsulfoximides as exemplified by 4 may be converted to the corresponding sulfonyl sulfoximine by heating with strong mineral acid or by treating with metallic sodium in liquid ammonia the sulfonyl sulfoximines may be converted to the corresponding sulfonyl n alkylsulfoximines by reaction with an alkylfluorosulfonate and may be converted to the corresponding sulfonyl n alkylsulfonylsulfoximides by reaction with an alkanesulfonylchloride the 2 unsubstituted compounds thus prepared may be converted to the corresponding 2 thioethers by reaction with the appropriate s containing alkylating agent the novel compounds of the present invention are those represented by formula i below str6 wherein r 1 is selected from hydrogen alkyl and carboalkoxy r 2 and r 3 when taken individually are selected from hydrogen and alkyl and r 2 and r 3 when taken together are spiro 1 3 dioxolane 2 r 6 is.