Mabuterol

Chemical compound From Wikipedia, the free encyclopedia

Mabuterol is a selective β2 adrenoreceptor agonist.[1][2]

Other namesMabuterolum; PB 868Cl
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Mabuterol
Clinical data
Other namesMabuterolum; PB 868Cl
Identifiers
  • 1-[4-amino-3-chloro-5-(trifluoromethyl)phenyl]-2-(tert-butylamino)ethanol
CAS Number
PubChem CID
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ChEBI
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Chemical and physical data
FormulaC13H18ClF3N2O
Molar mass310.75 g·mol−1
3D model (JSmol)
  • Clc1cc(cc(c1N)C(F)(F)F)C(O)CNC(C)(C)C
  • InChI=1S/C13H18ClF3N2O/c1-12(2,3)19-6-10(20)7-4-8(13(15,16)17)11(18)9(14)5-7/h4-5,10,19-20H,6,18H2,1-3H3
  • Key:JSJCTEKTBOKRST-UHFFFAOYSA-N
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Synthesis

Mabuterol synthesis[3][4][5][6][7]

The halogenation of 2-(Trifluoromethyl)aniline [88-17-5] (1) with iodine and sodium bicarbonate resulted in 2-Amino-5-Iodobenzotrifluoride [97760-97-9] (2). Protection with acetic anhydride followed by nucleophilic aromatic displacement with copper(I)cyanide gave N-[4-cyano-2-(trifluoromethyl)phenyl]acetamide [175277-96-0] (3). Hydrolysis of the nitrile and the protecting group gave 4-amino-3-(trifluoromethyl)benzoic acid [400-76-0] (4). Halogenation with chlorine gave 4-Amino-3-Chloro-5-(Trifluoromethyl)Benzoic Acid [95656-52-3] (5). Halogenation of the acid with thionyl chloride gave 4-Amino-3-chloro-5-(trifluoromethyl)benzoylchloride [63498-15-7] (6). Treatment with diethyl malonate [105-53-3] gave the acetophenone and hence 1-[4-amino-3-chloro-5-(trifluoromethyl)phenyl]ethanone [97760-76-4] (7). Halogenation with bromine in acetic acid led to 1-[4-amino-3-chloro-5-(trifluoromethyl)phenyl]-2-bromoethanone [97760-87-7] (8). Treatment with tert-butylamine [75-64-9] yielded 1-[4-amino-3-chloro-5-(trifluoromethyl)phenyl]-2-(tert-butylamino)ethenone, CID:13355601 (9). Reduction of the ketone with sodium borohydride completed the synthesis of Mabuterol (10).

See also

References

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