p-nitrobenzyl (1R,3R,5R,6S)-6-[(R)-1-hydroxyethyl]-2-oxo-1-methylcarbapenam-3-carboxylate → 4-Nitrobenzyl (1s,5r,6s)-6-((1r)-1-hydroxyethyl)-1-methyl-2-[7-(thiophen-2-yl)carbonylimidazo[5,1-b]-thiazol-2-yl]-1-carbapen-2-em-3-carboxylate

Participants

Reaction Steps

4-Nitrobenzyl (1S,5R,6S)-6-((1R)-1-hydroxyethyl)-1-methyl-2-[7-(thiophen-2-yl)carbonylimidazo[5,1-b]-thiazol-2-yl]-1-carbapen-2-em-3-carboxylate (815 mg) was prepared in the same manner as in step a) of Example 1, except that 640 mg of 4-nitrobenzyl (1R,3R,5R,6S)-6-((1R)-1-hydroxyethyl)-1-methyl-2-oxo-1-carbapenam-3-carboxylate and 923 mg of 7-(thiophen-2-yl)carbonyl-2-(tri-n-butylstannyl)imidazo[5,1-b]thiazole were used as the starting compounds.

Provenance & Evidence