Modified Modification

If a reference "teaches away" from some research activity (e.g., selecting a particular chemotype for modification, modifying a chemo-type in a specific fashion, or making a particular salt form), note this in the laboratory notebook and in the invention disclosure form. 

A. Primary tRNA transcript. B. Functional tRNA after posttranscriptional modification. Modified bases include D (dihydrouridine), (pseudouridine), and m. which means that the base has been methylated. 

Reaction Cleavage Base modification Modified base displacement Strand scission Experimental details... 

O activated with Et2AlCl. II. Et Al-TiCU solid , without modification +, modified with i-Bu2AlCl X, modified with Et2AlCl polymerization time—2.5 hours. 

Modifier, substance to be bonded - molecule, oligomer, polymer, particle - the participant of chemical modification. Modifier reacts chemically with the surface functional groups. The basic types of surface reactions are given below (S support X, Y - modifiers, Xs, Ys-surface bonded groups inherent surface functional groups are not shown) ... 

Table 4. Phosphorus-containing backbone modifications. Modified from [59]...

Fig. 21.5. Isomerization of F,iE-famesyl pyrophosphate to the corresponding alllylic cation-pyrophosphate ion pair, and subsequent modifications (modified from Cane, 1990 used with permission of the copyright owner. Copyright 1990, American Chemical Society, Washington, DC).

Modification Modified filler density Filler weight fraction Composite density... 

For technical application as adhesives and for food thickening purposes, w. are commonly stabilized by chemical modification (- modified starches, - cross-linked starches). 

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