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3-(5-chloro-2-methoxy-benzenesulfonyl)-7-methoxy-2,3-dihydro-benzooxazole-5-carboxylic acid

ethyl 4-aminobenzoate

→

4-{[3-(5-chloro-2-methoxy-benzenesulfonyl)-7-methoxy-2,3-dihydro-benzooxazole-5-carbonyl]-amino}-benzoic acid ethyl ester

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실험 절차

Reaction of 3-(5-chloro-2-methoxy-benzenesulfonyl)-7-methoxy-2,3-dihydro-benzooxazole-5-carboxylic acid with ethyl 4-aminobenzoate in analogy with example 30, step 4 gave 4-{[3-(5-chloro-2-methoxy-benzenesulfonyl)-7-methoxy-2,3-dihydro-benzooxazole-5-carbonyl]-amino}-benzoic acid ethyl ester. White solid, MS (ISP)=547.2 (M+H)+.

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