Alpha-Cyano-4-Hydroxycinnamic Acid → HCID 178429056, compound

Participants

Reaction Steps

3-5-methyl-3-(2-(N-(2-cyanoethyl)-N-(2-furanylmethyl)aminosulfonyl)phenylsulfonyloxy)phenoxy]propoxyguanidine: The title compound was prepared in 42% yield from N,N′-bis-(tert-butoxycarbony)-3-[5-methyl-3-(2-(N-(2-cyanoethyl)-N-(2-furanylmethyl)aminosulfonyl)phenylsulfonyloxy)phenoxy]propoxyguanidine, as prepared in the previous step, in a manner analogous to step i of Example 20 (without HCl-methanol acidification). 1H NMR (300 MHz, CDCl3) δ 8.23 (dd, 1H, J=7.9, 1.3 Hz), 8.14 (dd, 1H, J=7.9, 1.4 Hz), 7.76 (td, 1H, J=7.7, 1.4 Hz), 7.67 (td, 1H, J=7.7, 1.3 Hz), 7.29 (t, 1H, J=1.3 Hz), 6.56 (m, 2H), 6.51 (m, 1H), 6.28 (m, 2H), 4.61 (s, 2H), 3.91 (m, 4H), 3.62 (t, 2H, J=7.1 Hz), 2.53 (t, 2H, J=7.1 Hz), 2.20 (s, 3H), 2.00 (pentet, 2H, J=6.1 Hz). Mass spectrum (MALDI-TOF, α-cyano-4-hydroxycinnamic acid matrix) calcd. for C25H29N5O8S2: 592.2 (M+H), 614.1 (M+Na). Found: 592.2, 614.4.

Provenance & Evidence