tautomeric การใช้

• An example of rare NTPs are the tautomeric forms of some NTPs.
• These tautomeric forms are predominant at pH 7.
• 5-BrU exists in three tautomeric forms that have different base pairing properties.
• The movement of the proton from its regular position is called a tautomeric transition.
• Thiourea occurs in two tautomeric forms.
• Similar tautomeric rearrangement and pi-resonance stabilization would then give the ion some degree of stability.
• Spontaneous damage can include the loss of a base, deamination, sugar ring puckering and tautomeric shift.
• It is a tautomeric compound existing in enolic form in organic solvents and as a keto form in water.
• If one of the nitrogen substituents is a hydrogen atom, H, it is the tautomeric form of an imine.
• They are tautomeric and can exist as number of tautomers ( keto-enol tautomerism ), here exemplified by piroxicam:
• Thus, the two product is a tautomeric mixture of 4-oxalomesaconate and 4-carboxy-2-hydroxymuconate.
• Uracil undergoes amide-imidic acid tautomeric shifts because any nuclear instability the molecule may have from the lack of formal aromaticity is compensated by the cyclic-amidic stability.
• "' Acetylacetone "'is an organic compound that exists in two tautomeric forms that interconvert rapidly and are treated as a single compound in most applications.
• It is suggested that Pauling failed to solve the double helix structure of DNA before Crick because he viewed uracil as an amide and not as the tautomeric hydroxy compound.
• For example, a tautomeric form of cytosine is capable of forming 3 hydrogen bonds with adenine, and it will spontaneously tautomerize to its original cytosine form, causing a mismatch.
• His195 is appropriately positioned to act as a general base catalyst in the reaction, and the required tautomeric stabilisation is provided by an unusual interaction with a main-chain carbonyl oxygen.
• The molecular editing rules used by Leatherface are defined in SMARTS . Leatherface can be used to standardise tautomeric and ionization states and to set and enumerate these in preparation of databases for virtual screening.
• The compound was described in 1988 by G . Maier and others, who obtained it by pyrolysis of 1, 3, 5-cyclohexanetrione ( phloroglucin, the tautomeric form of phloroglucinol ).
• By 1928, he had deduced and confirmed the structures of maltose, cellobiose, lactose, gentiobiose, melibiose, gentianose, raffinose, as well as the glucoside ring tautomeric structure of aldose sugars.
• The zwitterionic nature of the molecule makes this highly water-soluble, as the presence of keto / enol tautomeric relationship, where a hydrogen transfer results in two distinct structures ( Figure 2 ).