for the following products
3-(S)-(+)-(1-Cyano-1,1-diphenylmethyl)-1-tosylpyrrolidine | 3-(S)-(1-Cyano-1,1-diphenylmethyl)-1-tosylpyrrolidine | 3-Pyrrolidineacetonitrile,1-[(4-methylphenyl)sulfonyl]-a,a-diphenyl-(3S)- and (S)-3-(1-cyano-1,1-diphenylmethyl)-1-tosyloxypyrrolidine