Method The target compound was synthesized from clarithromycin via hydrolyzation,acetylation,cyclic carbonatation,oxidation,decarbonatation,acylation,cyclic carbamatation and cyclization.
METHODS Balsalazide disodium was synthesized by reactions of condensation , reduction, diazotization , coupling and salification from 4-nitrobenzoyl chloride.
Synthesis of polyethenoxyether phosphate using polyethenoxyether as initiator and using phosphorus pentoxide as parkerizing reagent, and its application were studied.
Using ortho-bis(porpargyl alcohol) derivatives as starting materials, we employed sulfenyl or sulfinyl chloride under base condition to generate bis-allene intermediates.
Bromacil was synthesized using 2-bromobutane and urea as the starting materials in three steps including condensation,cyclization and bromination with total yield of 61%.
The sequences and secondary structures of IRES are compared.Interaction between IRES and translation initiation factors and relation with virulence of FMDV is summarized.
Etodolac was synthesized with 7-ethyltryptophol and methyl 3-oxopentanoate as the starting materials.Highly pure etodolac was obtained by purifying the crude product with a mixing solvent.
The hydrothermal synthesis method was adopted to prepare the rutile-type nano-sized TiO2 by using low-cost metatitanic acid as the starting reactant and the monacid as the dressing agent.
Type I depressor septi muscles(62%) are visible and identifiable, and can be traced to full interdigitation with the orbicularis oris from their origin at the medial crural footplate.
The start reading framae and stop codons, base composition in protein-coding genes and the codon usage of amino acids in Scolopendra multilane were compared with the three other myriapods.