239-241[degrees]C; IR (KBr) v/[cm.sup.-1]: 3427, 3362, 3219, 3162, 2914, 2888, 1605, 1515, 1433, 1282, 1254; [sup.1]H NMR (CD[Cl.sub.3], 300 MHz) [delta]: 0.60 (3H, s, 18-C[H.sub.3]), 0.65 (3H, d, J = 6.6, 21-C[H.sub.3]), 1.21 (3H, s, 19-C[H.sub.3]), 3.56-3.45 (1H, m, [C.sub.3]-H), 5.37 (1H, brs, C6-H), 6.238 (1H, s, -N[H.sub.2]), 7.22 (1H, s, -N[H.sub.2]), 8.51 (1H, s, -NH-); [sup.13]C NMR (CD[Cl.sub.3], 75 MHz) [delta]: 179.0 (-C=S), 153.2 (-C=N), 140.8 (5-C), 121.4 (6-C), 71.1 (3-C), 59.0 (14-C), 56.5 (17-C), 56.4 (9-C), 50.1 (13-C), 42.9 (4-C), 48.8 (12-C), 42.2 (8-C), 37.2 (1-C), 36.5 (10-C), 31.8 (7-C), 31.6 (16-C, 2-C), 24.1 (15-C), 21.0 (11-C), 19.4 (21-C), 17.3 (19-C), 13.2 (18-C);
HREIMS: m/z 390.2577 [[M+H].sup.+] (calcd for [C.sub.22][H.sub.36][N.sub.3]OS, 390.2579).