“…(C10HuNO5ClRe) C, , N, Cl. Preparation of |c/s-(0C)4Re[CH3C(0)][CH3CN(CH2CH2S)(H)]|2 (7) . The reaction time with cystamine with 15 h. From 0.40 g of 1 was isolated 0.15 g (31%) of 7 as a yellow oil: IR (CH2C12) ¡-(CO) 2075 (m), 1980 (br, vs), 1940 (s), ¡-(C^O, C~N) 1560 (br, m); NMR (intra isomer) 2.64 (s, 3, CH3CO), 2.76 (s, 3, CH3CN), 3.16 (t, 2, CH2S, 7=8 Hz), 3.89 (quartet, 2, CH2N, 7=8 Hz), 13.12 (br s, 1, NH); NMR (inter isomer) 2.55 (s, 3, CH3CO), 2.88 (s, 3, CH3CN), 3.24 (t, 2, CH2S, 7=8 Hz), 4.19 NMR (intra isomer) 2.60 (s, 3, CH3CN), 2.63 (s, 3, CH3CO), 3.13 (t, 2, CH2Ar, 7 = 8 Hz), 3.83 (quartet, 2, CH2N, 7 = 8 Hz), 7.00 (s, 1, CCHN), 7.62 (s, 1, NCHN), 9.90 (br s, 1, NH of Ar), 12.69 (br s, 1, NH). Anal.…”