2-heptynoic acid, 6-hydroxy-7-(2-pyridinyl)-, methyl ester InChI=1/C13H15NO3/c1-17-13(16)8-3-2-7-12(15)10-11-6-4-5-9-14-11/h4-6,9,12,15H,2,7,10H2,1H methyl 6-hydroxy-7-pyridin-2-ylhept-2-ynoate