Cyanamide → HCID 178486148, compound

Participants

Reaction Steps

Following the general procedure for cyanoguanidine formation outlined in example 12, N-[4-chloro-2-tert-butyldimethylsilyloxy-3-(N″,N″-dimethylaminosulfonyl)phenyl]-N′-(2-fluorophenyl)carbodiimide (350 mg, 0.72 mmol), cyanamide (121 mg, 2.88 mmol) and N,N-diisopropylethylamine (111 mg, 0.86 mmol) were reacted, followed by desilylation with Cesium fluoride (132 mg, 0.86 mmol) to form the desired product (120 mg, 40%). EI-MS m/z 412.2 (M+). 1H NMR (DMSO-d6) δ 2.86 (s, 6H), 7.20 (m, 2H), 7.27 (m, 2H), 7.40 (t, 1H), 7.52 (d, 1H), 9.06 (s, 1H), 9.20 (s, 1H), 10.51 (s, 1H).

Provenance & Evidence