371193-61-2

Upstream product

• 76801-85-9 9-Deoxo-9a-aza-9a-homoerythromycin A 
• 501-53-1 benzyl chloroformate 
• 352032-78-1 (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-13-[(2,6-dideoxy-3-C-methyl-3-O-methyl-α-L-ribo-hexopyranosyl)oxy]-2-ethyl-3,4,10-trihydroxy-3,5,8,10,12,14-hexamethyl-11-[[3,4,6-trideoxy-3-(dimethylamino)-2-O-[(phenylmethoxy)carbonyl]-β-D-xylo-hexopyranosyl]oxy]-1-oxa-6-azacyclopentadecan-15-one 

Downstream Products

• 217649-77-9 carbonic acid benzyl ester 4-dimethylamino-2-[2-ethyl-3,4,10-trihydroxy-13-(8-methoxy-4,8-dimethyl-1,5-dioxa-spiro[2.5]oct-6-yloxy)-3,5,8,10,12,14-hexamethyl-15-oxo-1-oxa-6-aza-cyclopentadec-11-yloxy]-6-methyl-tetrahydro-pyran-3-yl ester 
• 217501-36-5 C₄₈H₇₈N₂O₁₄ 
• 217500-96-4 (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-13-[[2,6-dideoxy-3-C-methyl-3-Ο-methyl-4-C-[(propylamino)methyl]-α-L-ribohexopyranosyl]oxy]-2-ethyl-3,4,10-trihydroxy-3,5,8,10,12,14-hexamethyl-11-[[3,4,6-trideoxy-3-(dimethylamino)-β-D-xylohexopyranosyl]oxy]-1-oxa-6-azacyclopentadecan-15-one 
• 477198-91-7 carbonic acid benzyl ester 4-dimethylamino-2-[2-ethyl-3,4,10-trihydroxy-13-(8-methoxy-4,8-dimethyl-1,5-dioxa-spiro[2.5]oct-6-yloxy)-3,5,8,10,12,14-hexamethyl-15-oxo-1-oxa-6-aza-cyclopentadec-11-yloxy]-6-methyl-tetrahydro-pyran-3-yl ester 

Relevant academic research and scientific papers

Preparation method of tulathromycin intermediate product

The invention discloses a preparation method of a compound shown in a formula II. The preparation method comprises a step of carrying out oxidizing reaction, shown in the specification, on a compoundshown in a formula I in the presence of an organic alkali, an organic acid, dimethyl sulfoxide and a carbon diimine dewatering agent in an organic solvent. According to the method, low-temperature reaction (minus 80 DEG C to minus 60 DEG C) is avoided, reaction conditions are milder, operation is simple, convenient and safe, and the energy consumption and the cost are reduced.

Method for synthesizing oxytetracycline and oxytetracycline phosphate (by machine translation)

Step A product shown in Formula is obtained by dissolving, a product of: Formula I with a product shown by subjecting a product shown II in Formula to a reaction; to obtain a product having a hydroxyl: protection product II as shown in Formula I, and a ca

Method for preparing 2-iodoxybenzoic acid

The invention relates to a method for preparing 2-iodoxybenzoic acid, and belongs to the technical field of synthesis of rings containing a halogen atom as a heterocyclic atom. The method comprises the following steps: adding an oxidant to 2-iodobenzoic acid used as a raw material, carrying out a reaction in an acidic solution at 50-120 DEG C for 1-6 h, and purifying the obtained reaction productto obtain the 2-iodoxybenzoic acid. The method has the advantages of small toxicity, mild technologic conditions, economical and cheap property and suitableness for industrialization when applied to the synthesis of a catalyst.

METHOD AND INTERMEDIATE FOR PREPARING TULATHROMYCIN

A method and an intermediate for preparing a tulathromycin. The method includes the following step: in an organic solvent, subjecting a compound represented by formula (II) and an n-propylamine to a ring-opening addition shown below to obtain a tulathromycin represented by formula (I), wherein the organic solvent is a 1,2-propandiol. Tulathromycin obtained using the method has a high purity, with an HPLC purity being 95% and above, and up to 99% and above, satisfying a required purity for preparing a tulathromycin as a pharmaceutical formulation. The method has a high yield, is simple to operate, and is more suitable for industrial production.

Tulathromycin oxalate

The invention discloses salt of tulathromycin, particularly oxalate, a preparation method of tulathromycin oxalate and application of tulathromycin oxalate to preparation of tulathromycin.

Salt for tulathromycin intermediate

The invention discloses a salt for preparing a tulathromycin intermediate, and particularly relates to oxalate and a preparation method thereof as well as application of the oxalate in a method for preparing tulathromycin.

Synthesis, stereochemical assignment and biological activity of a novel series of C-4″ modified aza-macrolides

Modification of the cladinose C-4″ position via manipulation of the corresponding keto derivatives afforded two stereochemically pure series of compounds. The synthesis and structure determination of these compounds is described within. The in vitro and i

Synthesis and activity of a novel class of tribasic macrocyclic antibiotics: The triamilides

The stereoselective synthesis of two novel series of tribasic macrocyclic antibiotics with potent in vitro activity against Pasteurella multocida and Escherichia coli strains of bacteria is described. The in vitro activity can be significantly influenced