Method for making certain...

C - Chemistry – Metallurgy – 07 – D

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C07D 471/14 (2006.01) C07D 491/22 (2006.01)

Patent

CA 2090966

2090966 9206095 PCTABS00011 A method for making 8-methyl-7-(1-oxopropyl)indolizino[1,2-b]quinolin-9(11H)-ones from 4-ethyl-4-hydroxy-1H-pyrano[3',4':6,7]indolizino[1,2-b]quinolin-3,14(4H, 12H)-diones.

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