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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 13, Number 3
BKCSDE 13(3)
March 20, 1992 

Total Synthesis of Sodium (3S,4R)-3-[2-(2-Aminothiazol-4-yl)-(Z)-2-methoxyiminoacetamido]-4-methoxymethyl-2-azetidinone-1-sulfonate from D-Aspartic Acid
Bong Young Chung*, Jin Yeon Kim, Cha Soo Nah, Kee Jong Han, Jong Ok Park
Sodium (3S,4R)-3-[2-(2-aminothiazol-4-yl)-(Z)-2-methoxyi minoacetamido]-4-methoxymethyl-2-azetidinone-1- sulfonate (2) was synthesized in fourteen steps from D-aspartic acid. Starting from D-aspartic acid, (3S,4R)-3-amino-1-t-butyldimethylsilyl-4-methoxym ethyl-2-azetidinone (12) was synthesized in ten steps. Acylation of the amino group of 12 with 2-amino-α-(methoxyimino)-4-thiazoleacetic acid, desilylation, sulfonation, and ion exchange afforded sodium (3S,4R)-3-[2-(2-aminothiazol-4-yl)-(Z)-2-methoxyi minoacetamido]-4-methoxymethyl-2-azetidinone-1- sulfonate (2). This new β-lactam compound 2 showed low antibacterial activities.
315 - 316
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