67529-87-7

Upstream product

• 67198-78-1 (R)-2-tert-Butoxycarbonylamino-4-[4-(4-nitro-benzyloxyoxalyl)-phenoxy]-butyric acid benzhydryl ester 
• 73888-92-3 diphenylmethyl D-4-(p-acetylphenoxy)-2-(1-t-butoxyformamido)butyrate 
• 67198-88-3 BOC-D-homoserine diphenylmethyl ester 
• 88147-56-2 N-t-butyloxycarbonyl-D-asparagine, benzhydrylester 
• 908093-98-1 diazodiphenylmethane 
• 67198-86-1 (R)-2-[(tert-butoxycarbonyl)amino]butano-4-lactone 
• 1198-84-1 4-hydroxymandelic acid 
• 67198-83-8 p-nitrobenzyl 4-hydroxyphenylglyoxylate 
• 88147-57-3 BOC-D-aspartic acid 1-diphenylmethyl ester 
• 7536-55-2 N-t-butyloxycarbonyl-D-asparagine 

Downstream Products

• 60134-71-6 nocardicin B 
• 39391-39-4 (-)-nocardicin A 
• 61425-17-0 (-)-nocardicin D 

Relevant academic research and scientific papers

A total synthesis of nocardicins

Four-component-condensation of D-isoserine or L-isoserine, diphenylmethyl isocyanide and p-(benzyloxy)benzaldehyde was used to construct a functionalized β-lactam ring system which was transformed in 4 steps into 3-aminocardicinic acid. A protected side c

Fragmentation procedure for preparing 3-amino-azetidinones

When 3-(2-hydroxyiminoacetylamino)-2-oxo-azetidine compounds are treated with reactive derivatives of carbonic acid half-esters in aqueous media in the presence of bases a fragmentation takes place which, in addition to 3-amino-2-oxo-azetidines, also yiel