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?? ???? >(7R)-7-[[(Z)-(2-Amino-4-thiazolyl)(methoxyimino)acetyl]amino]cepham-3-ene-4-carboxylic acid 2-methyl-2-butenyl ester
(7R)-7-[[(Z)-(2-Amino-4-thiazolyl)(methoxyimino)acetyl]amino]cepham-3-ene-4-carboxylic acid 2-methyl-2-butenyl ester
(7R)-7-[[(Z)-(2-Amino-4-thiazolyl)(methoxyimino)acetyl]amino]cepham-3-ene-4-carboxylic acid 2-methyl-2-butenyl ester ??
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(7R)-7-[[(Z)-(2-Amino-4-thiazolyl)(methoxyimino)acetyl]amino]cepham-3-ene-4-carboxylic acid 2-methyl-2-butenyl ester C??? ??, ??, ??
(7R)-7-[[(Z)-(2-Amino-4-thiazolyl)(methoxyimino)acetyl]amino]cepham-3-ene-4-carboxylic acid 2-methyl-2-butenyl ester ?? ?? ? ???
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(7R)-7-[[(Z)-(2-Amino-4-thiazolyl)(methoxyimino)acetyl]amino]cepham-3-ene-4-carboxylic acid 2-methyl-2-butenyl ester ?? ??
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(7R)-7-[[(Z)-(2-Amino-4-thiazolyl)(methoxyimino)acetyl]amino]cepham-3-ene-4-carboxylic acid 2-methyl-2-butenyl ester ?? ??: