20793-93-5

Basic information

• Product Name: N(α)-benzyloxycarbonyl-N(τ)-piperidinocarbonyl-L-histidine methyl ester
• Synonyms: N(α)-benzyloxycarbonyl-N(τ)-piperidinocarbonyl-L-histidine methyl ester
• CAS NO: 20793-93-5
• Molecular Weight: 414.461
• Mol File: 20793-93-5.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: N(α)-benzyloxycarbonyl-N(τ)-piperidinocarbonyl-L-histidine methyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: N(α)-benzyloxycarbonyl-N(τ)-piperidinocarbonyl-L-histidine methyl ester(20793-93-5)
• EPA Substance Registry System: N(α)-benzyloxycarbonyl-N(τ)-piperidinocarbonyl-L-histidine methyl ester(20793-93-5)

Safety Data

• Hazardous Substances Data: 20793-93-5(Hazardous Substances Data)

Upstream product

• 13939-69-0 piperidine carbamoyl chloride 
• 15545-10-5 Z-His-OMe 

Downstream Products

• 368-16-1 3-methyl-L-histidine 

Relevant articles and documents

The Differentiation of ?- and τ- Derivatised Histidines

Two simple methods of differentiating ?- and τ-derivatised histidines unambiguously are described.The first involves conversion into the two known im-methyl-L-histidines, which, to avoid all possible confusion arising from ambiguous nomenclature and previous work, have been correlated with N(α)-t-butyloxycarbonyl-N(?)-benzyloxymethyl-L-histidine, whose structure has been established by X-ray crystallography.The second method, which is appropriate for im-substituents of type RCH2-, involves the measurement of nuclear Overhauser effects.If the substituent is at the ?-position, the CH2 signal is enhanced if the low-field adjacent proton between the heterocyclic nitrogens is irradiated, but not if the high-field, more distant, ring proton is irradiated.If the substituent is at the τ-position, the CH2 signal is enhanced whichewer of the equidistant ring protons is irradiated.