InChI=1/C15H16O3/c1-4-12-7-5-6-8-13(12)10-14(9-11(2)16)15(17)18-3/h1,5-8,14H,9-10H2,2-3H benzenepropanoic acid, 2-ethynyl-alpha-(2-oxopropyl)-, methyl ester methyl 2-(2-ethynylbenzyl)-4-oxopentanoate