反应详情

Compound 187 was synthesized using spiro[naphtho[1,2-b][1,4]oxathiine-2,4′-piperidine]-5,6-dione, (2S)-2-benzyloxirane and conditions outlined in procedure Y. M.p.=149-150° C.; 400 MHz 1H NMR (CDCl3) δ: 8.04 (dd, J=7.8, 1.2 Hz, 1H), 7.73 (dd, J=7.8, 0.8 Hz, 1H), 7.64 (td, J=7.6, 1.2 Hz, 1H), 7.48 (td, J=7.4, 1.2 Hz, 1H), 7.34-7.20 (m, 5H), 4.02-3.94 (m, 1H), 2.93 (s, 2H), 2.87 (dd, J=13.3, 6.8 Hz, 2H), 2.78-2.66 (m, 3H), 2.50-2.38 (m, 3H), 2.18-2.08 (m, 2H), 1.94-1.78 (m, 2H); LCMS: 436 [M+H]; enantiomeric excess determined by chiral HPLC: >99%; Chiral HPLC Rt=63.08 min.