32393-52-5

Upstream product

• 7733-29-1 Z-Orn(Boc)-OH 
• 74-88-4 methyl iodide 
• 25693-00-9 N⁵-((Ξ)-benzyliden)-L-ornithine 
• 2640-58-6 Nα-benzyloxycarbonyl-L-ornithine 
• 1070-19-5 N-(tert-butyloxycarbonyl) azide 
• 186581-53-3 diazomethane 

Downstream Products

• 122314-14-1 ((S)-4-tert-Butoxycarbonylamino-1-formyl-butyl)-carbamic acid benzyl ester 
• 849815-16-3 tert-butyl N-[(4S)-4-(benzyloxycarbonylamino)-5-hydroxy-pentyl]carbamate 
• 905574-54-1 (S)-benzyl tert-butyl (5-aminopentane-1,4-diyl)dicarbamate 
• 913094-49-2 (4R,5S)-5-benzyloxycarbonylamino-8-tert-butyloxycarbonylamino-4-methanesulfonyloxy-1-octene 
• 913094-52-7 (4R,5S)-5-benzyloxycarbonylamino-8-tert-butyloxycarbonylamino-4-hydroxy-1-octene 
• 913094-51-6 (5S)-5-benzyloxycarbonylamino-8-tert-butyloxycarbonylamino-4-oxo-1-octene 
• 913094-53-8 Methanesulfonic acid (1R,2S)-1-allyl-5-amino-2-benzyloxycarbonylamino-pentyl ester 
• 913094-48-1 ((2S,3S)-1,2-Diallyl-piperidin-3-yl)-carbamic acid benzyl ester 
• 913094-54-9 (1S,10S)-1-benzyloxycarbonylamino-7,8-didehydroquinolizidine 
• 917501-52-1 Z-D-Phe-Pro-Val-Orn(Boc)-OH 
• 913094-50-5 [4-benzyloxycarbonylamino-4-(methoxy-methyl-carbamoyl)-butyl]-carbamic acid tert-butyl ester 
• 122314-41-4 (benzyloxycarbonyl)-L-phenylalanyl-L-leucyl-L-ornithinal hydrochloride 

Relevant academic research and scientific papers

BACTERIAL EFFLUX PUMP INHIBITORS

Disclosed herein are compounds of formula I and salts thereof. Also disclosed are compositions comprising compounds of formula I and methods using compounds of formula I.

INDOLE DERIVATIVES AS EFFLUX PUMP INHIBITORS

Disclosed herein are compounds of formula (I): and salts thereof. Also disclosed are compositions comprising compounds of formula I and compounds of formula I for use in treating or preventing bacterial infections.

BACTERIAL EFFLUX PUMP INHIBITORS

Disclosed herein are compounds of formula I: and salts thereof. Also disclosed are compositions comprising compounds of formula I and methods using compounds of formula I.

BACTERIAL EFFLUX PUMP INHIBITORS

Disclosed herein are compounds of formula I: and salts thereof. Also disclosed are compositions comprising of compounds of formula I and methods using compounds of formula I.

BACTERIAL EFFLUX PUMP INHIBITORS

Disclosed herein are compounds of formula I: and salts thereof. Also disclosed are compositions comprising of compounds of formula I and methods using compounds of formula I.

Total synthesis of (-)-muraymycin D2 and its epimer

Chemical Equetion Presentation Full details of the first total synthesis of (-)-muraymycin (MRY) D2 and its epimer, the antibacterial nucleoside natural product, are described. Key strategic elements of the approach include the preparation of the urea dipeptide moiety found in the muraymycins containing an L-epi-capreomycidine via a nitrene C-H insertion of the sulfamate 10 and the fully protected muraymycin skeleton at a late stage by an Ugi four-component reaction. Thus, the nitrene C-H insertion of the sulfamate 10 with 10 mol % of Rh2(esp)2 catalyst gave the cyclic sulfamates 11a and 11b in 47% yield (11a:11b = 1:2.0). Construction of the cyclic guanidine skeleton was effected through the HgBr2-promoted cyclization of 42 followed by desulfonylation upon acetolysis of the oxathiazinane ring to give 43 in good yield. The amine obtained by selective removal of the Cbz group of the alcohol 44 was reacted with MeSC(=O)-L-Val-O-t-Bu (38) to provide 45, which was oxidized to the carboxylic acid 46. Reaction of 46, isonitrile 51, isovaleraldehyde, and 2,4-dimethoxybenzylamine furnished the desired Ugi products, the final deprotection of which successfully afforded (-)-MRY D2 and epi-MRY D2 (53) after HPLC separation of the diastereomers. This approach would afford ready access to a range of analogues simply by altering each component.