+++thanks_1 article from heteroccyles

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Ethyl α-Amino-β,β-Diethoxypropionate, a Useful Synthon for the Preparation of 3,4-Fused Pyridine-6-carboxylates from Aromatic Aldehydes

Sunil K. Singh, Mouloud Dekhane, Mireille Le Hyaric, Pierre Potier, and Robert H. Dodd*
Heterocycles, Vol 44, No. 1, 1997, pp.379-391

DOI:

http://dx.doi.org/10.3987/COM-96-S30

link:

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http://www.heterocycles.jp/newlibrary/payments/form/06501/PDF

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