D-tyrosine methyl ester C 60-18-4 L-tyrosine Conditions ConditionsYield at 30℃; for 0.333333h; enzyme alcalase from Bacillus licheniforms; pH 8.0; Yields of byproduct given; A n/aB 86%C n/a at 30℃; for 0.333333h; enzyme alcalase from Bacillus licheniforms; pH 8.0; Yield giv...
jannaschii TyrRS variant was that of the O-methyl-l-tyrosine-specific variant in the substrate-free form (Zhang et al., 2005). Since then, the crystal structures of M. jannaschii TyrRS variants complexed with their specific substrates, 4-bromophenylalanine, 4-acetylphenylalanine, 3-(2-...
Synthesis of the Corresponding Poly(phosphoester-co-amide) P(DTTH-EOP) ##STR12## Under an argon stream, 7.8 g of desaminotyrosyl tyrosine hexyl ester (DTTH), 5.07 g of 4-dimethylaminopyridine (DMAP), and 50 ml of methylene chloride were transferred to a 250 ml flask equipped with a...
As an alternative, esterification into an ethyl ester may performed. The OH group of the ester of the compound according to formula c is provided with a protecting group in step iii. Benzyl groups or methyl groups may be used as protecting groups. ...
2. A method for producing the compound according to formula (3) where X=H or CH3 and R4=nucleophilic leaving group, such as F, Br, Cl, NO2,—NR3+, where R=alkyl, such as CH3, C2H5, and (S)-1-(tert-butoxycarbonyl)-2-tert-butyl-3-methyl-4-imidazolidinone, (S)-Cbz-BMI: (S)...