Sentence examples similar to methyl or a from inspiring English sources

The nitrogen of the carbamate structures is generally either a secondary (N-methyl) or a tertiary (N-dimethyl) amine, whilst the esterified group tends to be a bulky aromatic or an oxime group (Fig. 1).

For purples in prints dated between 1875 and 1883, it is not possible to differentiate aged methyl violet or a mixture of methyl violet and magenta.

20 These salts contain one phenyl group and one aryl group with one, two, or three methyl (1 a– 1 f) or methoxy substituents (2 a– 2 f).

Depending of the substituent R (methyl or aromatic ring), a competitive or a slow-binding inhibition takes place.

In order to prepare novel silagaba compounds with bulkier substituents than the trimethylsilyl group of silagaba121 [(R)- 2a] and 122 [(S)- 2a], we introduced a (1-methyl-1-silacyclopentan-1-yl)methyl substituent or a [cyclopropyl(dimethyl)silyl]methyl substituent at the 3-position of GABA.

The substitution of a methyl or hydroxy group in the bipyridine has a steric influence which alters the structural behavior of these compounds.

In addition to straight-chain hydrocarbons, fatty acids may also contain pairs of carbons linked by one or more double bonds, methyl branches, or a three-carbon cyclopropane ring near the centre of the carbon chain.

Their thermal stability was affected by the alkyl subsitituents; sulfonium salts with two methyl groups or a pentamethylene group exhibited a decomposition temperature of more than 200 °C.

In some cases ribose C1' atom is replaced by a methyl group or a hydrogen atom.

SIRT1 expression is reduced in rodents fed with either diet deficient in methyl donors or a high-fat/glucose (sucrose) diet.

Additionally, we replaced methoxy group with hydroxyl, methyl groups or a hydrogen atom to investigate the influence of the methoxy group at the C4-positon on the benzene ring A for antiviral activity.