cas 74447-88-4, 4,5-Dioxo-4,5-dihydro-1H-pyrrol[2,3-f]quinoline-2,7,9-tricarboxylic acid trimethyl ester | Articles data ｜lookchem

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74447-88-4

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SYNTHESIS OF THE BACTERIAL COENZYME METHOXATIN
A short total synthesis of the bacterial coenzyme methoxatin (1) (4,5-dihydro-4,5-dioxo-1H-pyrroloquinoline-2,7,9-tricarboxylic acid) is described.The route involves the two step conversion of 4-acetamido-2-benzyloxybenzaldehyde (5b) into methyl 6-acetamido-4-benzyloxyindole-2-carboxylate (7b) (74percent), followed by regioselective annulation of the third ring (55percent), and debenzylation and oxidation with benzoyl t-butyl nitroxide to give the tricyclic quinone triester (13) (methoxatin triester) (83percent).
MacKenzie, A. Roderick,Moody, Christopher J.,Rees, Charles W.
p. 3259 - 3268
(2007/10/02)

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Chemical Properties

Boiling Point: 652.7°C at 760 mmHg
Flash Point:348.5°C
Density: 1.523g/cm³
Vapor Pressure: 6.45E-17mmHg at 25°C
PSA: 141.72000
LogP: 0.81550

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