Rastogi, R. R. published the artcileKetene SS-acetals. Part 10. Reaction of α-oxoketene SS-acetals with N-alkylcyanoacetamides: a new general method for substituted and fused 2,7-dialkyl-8-amino-5-cyano-2,7-naphthyridine-1,6(2H,7H)-diones, Formula: C5H8N2O, the publication is Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999) (1978), 554-8, database is CAplus.
The reaction of α-oxoketene dithioacetals with NCCH2CONHR (I; R = Me, Et) in the presence of NaOCHMe2 gave 25-93% 2,7-naphthyridine derivatives via N-alkylpyridone intermediates. E.g., naphthyridine II was obtained (38%) by reaction of (MeS)2C:CHCOPh with I (R = Me). (MeS)2C:CRCN (III; R = Ph, p-ClC6H4, CN) gave 46-68% pyridones IV (R = Me, Et, R1 = Ph, p-ClC6H4, CN) under similar conditions, whereas cyclic ketene dithioacetals V (n = 1,2) gave 71-80% fused naphthyridines VI (n = 1, 2, R = Me, Et). Naphthonaphthyridones VII (R = Me, Et; n = 1, R1 = H, OMe; n = 2, R1 = H) were obtained in high yield from the reaction of ketene dithioacetals VIII (n = 1, R1 = H, OMe; n = 2, R = H) with I (R = Me, Et).
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999) published new progress about 15029-36-4. 15029-36-4 belongs to amides-buliding-blocks, auxiliary class Nitrile,Amine,Aliphatic hydrocarbon chain,Amide, name is 2-Cyano-N-ethylacetamide, and the molecular formula is C5H8N2O, Formula: C5H8N2O.
Referemce:
https://en.wikipedia.org/wiki/Amide,
Amide – an overview | ScienceDirect Topics