[NH2:1][C:2]1[N:6]=[C:5]([S:7][CH2:8][CH2:9][S:10][CH2:11][CH2:12]SCCCCCC)[NH:4][N:3]=1.[CH2:20](SCCCl)[CH2:21][CH2:22][CH2:23][CH2:24][CH2:25]CC>>[NH2:1][C:2]1[N:6]=[C:5]([S:7][CH2:8][CH2:9][S:10][CH2:11][CH2:12][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][CH3:25])[NH:4][N:3]=1Compound 7 was prepared by using the procedure used for Compound 12, but with 2-chloroethyl octyl sulfide as the starting material. The yield was 96%. A portion was recrystallized from ligroin/ethyl acetate to obtain a solid, m.p. 85°-86° C. Analysis: Calculated for C12H24N4S2 : C, 49.96; H, 8.39; N, 19.42. Found: C, 49.54; H, 8.12; N, 19.29.
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