82186-71-8 Usage
Description
Halofuginone Lactate is a halogenated derivative of febrifugine, a natural quinazolinone-containing compound found in the Chinese herb D. febrifuga.
Uses
Halofuginone is a halogenated derivative of Febrifugine (F228500). Halofuginone is used as an antiprotozoal. It is a coccidiostat used in veterinary medicine. It is a synthetic halogenated derivative of febrifugine, a natural quinazolinone alkaloid which can be found in the Chinese herb Dichroa febrifuga (Chang Shan).Collgard Biopharmaceuticals is developing halofuginone for the treatment of scleroderma and it has received orphan drug designation from the U.S. Food and Drug Administration.Integration of halofuginone lactate treatment and disinfection with p-chloro-m-cresol to control natural cryptosporidiosis in calves
Check Digit Verification of cas no
The CAS Registry Mumber 82186-71-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,1,8 and 6 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 82186-71:
(7*8)+(6*2)+(5*1)+(4*8)+(3*6)+(2*7)+(1*1)=138
138 % 10 = 8
So 82186-71-8 is a valid CAS Registry Number.
InChI:InChI=1/C16H17BrClN3O3.C3H6O3/c17-11-6-13-10(5-12(11)18)16(24)21(8-20-13)7-9(22)4-14-15(23)2-1-3-19-14;1-2(4)3(5)6/h5-6,8,14-15,19,23H,1-4,7H2;2,4H,1H3,(H,5,6)/t14?,15-;/m1./s1
82186-71-8Relevant articles and documents
Synthetic method for halofuginone and intermediate of halofuginone
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Paragraph 0280-0282, (2019/11/28)
The invention relates to a synthetic method for halofuginone and an intermediate of the halofuginone. The reaction formula is shown in the description, wherein R1 is one selected from the group consisting of methyl, ethyl, n-propyl, isopropyl and t-butyl; R2 is one selected from the group consisting of methyl and ethyl; and R3 is one selected from the group consisting of methoxyformyl, ethoxyformyl, tert-butoxyformyl, benzyloxyformyl, trichloroethoxyformyl and benzyl. The synthetic method provided by the invention has the advantages of a simple process, low costs, few by-products in the synthetic process, a simple purification process, no need of column chromatography purification, a high product yield, less impurities, high purity, and controllable product quality, easily meets ICH declaration requirements and can be used for industrial production of the halofuginone.