Reaction Steps
The compound 89 (245 mg, 0.6 mmol) was converted to the carbamate with palmitoyl isocyanate (5 eq.) in the same manner as the example 66 to give the compound 95 (207 mg, 50%) as oil. Rf 0.40 (EtOAc). PMR (CDCl3): δH0.88 (3 H, t like, CH3),1.25 (24 H, bs, --CH2 --), 1.31 (6 H, d, J 7.0 Hz, (CH3)2CH), 1.59 (2 H, m, --CH2 --), 2.59 (2 H, t, J 7.8 Hz, --CH2CO--, 3.19 (1 H, sep, J 7.0 Hz, (CH3)2CH), 5.22 (2 H, s, NCH2), 5.27 (2 H, s, OCH2), 6.70 (2 H, d, J 1.6 Hz, arom 2- and 6-H), 6.76 (2 H, d-like, 4-pyridyl 2- and 6-H), 7.06 (1 H, t, J 1.6 Hz, arom 4-H), 7.35 (1 H, bs, NH), 8.46 (2 H, d-like, 4-pyridyl 3- and 5-H). IR (CHCl3)cm-1 3394 (NH), 1792 and 1764 (NCO), 1716 (NCOO). Elementary analysis (for C34H46N4O3SCl2) Calcd.: C, 62.69% H, 7.31% N, 8.12% S, 4.65% Cl, 10.28% Found: C, 61.89% H, 7.66% N, 8.41% S, 4.56% Cl, 9.65% hydrochloride of the compound 95 mp. 158-160° C. Elementary analysis (for C36H52N4O3SCl4) Calcd.: C, 56.69% H, 6.87% N, 7.35% S, 4.20% Cl, 18.59% Found: C, 55.85% H, 6.71% N, 7.64% S, 4.28% Cl, 18.66%
