1. Bakale, R. P. Specialty Chem. Prod. Market Applic.1995, 15, 249; Caira, M. R.; Hunter, R.; Nassimbeni, L. R.; Stevens, A. T. Tetrahedron: Asymmetry1999, 10, 2175. Review on drug evaluation of Salbutamol, see: Stephen, A. H.; Clissold, S. P. Drugs1989, 38, 77.
2. Different ‘side-by-side’ dimeric structures were reported in Refs. 2a and 2b: (a) Altria, K. D. J. Chromatography1993, 636, 125; Altria, K. D. J. Chromatography1993, 634, 323; (b) Altria, K. D.; Luscombe, D. C. M. J. Pharm. Biomed. Anal.1993, 11, 415; Rogan, M. M.; Altria, K. D.; Goodall, D. M. Electrophoresis1994, 15, 808.
3. A concise synthesis of 1-(3-hydroxymethyl-4,5-dihydroxyphenyl)-2-tert-butylamino-ethanol (5-hydroxyalbuterol)
4. Calixarenes. 7. p-Phenylcalix[4]arene