2-氯吡唑并[1,5-a]吡啶

吡唑并[1,5-a]吡啶-2(1H)-酮

methyl 2-piperidin-2-ylacetate,hydrochloride

methyl (2Z)-2-nitroso-2-(1H-pyridin-2-ylidene)acetate

6-nitro-3-pyridin-2-ylchromen-2-one