Groups, definitions

Symbol Name of group In terms of other groups Definition Application... 

Cross references to related group or sub-group entries are also included, with a group list of the names and serial (not page) numbers of the chemicals appearing in Volume 1 which lie within the structural or functional scope of the group entry title. Compounds which are closely similar to, but not in strict conformity with, the group definition are indicated by a prefixed asterisk. 

Definition Bond Grouping Definition Bond Grouping... 

In the first group definite states of the molecules to be analyzed are excited by the monochromatic and frequency-tunable laser light, thus inducing selective photochemical reactions. 

Ornithine or a, h-diamimrvalerianic Acid.—In 1877 JafTe obtained from the urine of birds, which he had fed with benzoic acid, dibenzoyl ornithine or ornithuric acid, and from this substance he prepared ornithine chloride. He regarded it as a diaminovalerianic acid, the first known representative of the series of diamino acids, but only in 1898 was the position of the two amino groups definitely determined by Ellinger, who obtained putrescine from it by putrefaction the identity of putrescine with tetramethylenediamine had been previously shown by... 

Organic functional groups definition and structural features... 

QCM Values forVM at 20 and 25°C. Most GCM values for are based on group definitions that are more discriminative than those used in the models above. Examples are the method of Exner [29] to estimate Vm at 20°C and the method of Fedors [31] to estimate Vm at 25°C. GCM values have been reviewed by van Krevelen [11]. Highly discriminative methods have been developed by Dubois and Loukianoff [32] and by Constantinou et al. [33]. These methods are discussed briefly below. 

The structure-based pharmacophore was built using the crystallographic coordinates of argatroban complexed with thrombin [101] and the functional group definitions contained within the CATALYST software to predict the effects on the K[ values of structural modification of a set of homologous 4-aminopyridine (4-AP) thrombin inhibitors. 

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