1-[(3R,4S,5R)-4-(tert-Butyl-diphenyl-silanyloxy)-5-(tert-butyl-diphenyl-silanyloxymethyl)-tetrahydro-furan-3-yl]-3-((E)-3-methoxy-2-methyl-acryloyl)-urea
3-methoxy-N-(phenylaminocarbonyl)2-methyl-2-propenamide
1-((E)-3-Methoxy-2-methyl-acryloyl)-3-[2-((2R,4S,5R)-4-trimethylsilanyloxy-5-trityloxymethyl-tetrahydro-furan-2-yl)-ethyl]-urea
N-<(3,3-bisbenzyloxymethylcyclobut-1-yl)-aminocarbonyl>-3-methoxy-2-methyl-2-propenamide
(S)-tert-butyl (3-3-(((2E)-3-methoxy-2-methylprop-2-enoyl)carbamoyl)amino)piperidine-1-carboxylate