Vitamin B12 and B12-Proteins

  • Bernhard Krautler, Duilio Arigoni, Bernard T.Golding
  • Издательство: Wiley-VCH
  • ISBN: 3527294805
  • Год издания: 1998
  • Кол.страниц: 539
  • Язык: английский
  • Формат: PDF
  • Размер: 22,26 Mb
In an article written in the seventies, the decade of the previous B12 symposium, I was refemng metaphorically to the endeavour of a chemical synthesis of vitamin B12 as an attempt to "connect X-ray island with the mainland of chemical experience". Marching step by step towards this molecular structure by chemical synthesis was meant to provide us with all that knowledge of chemical properties of the complex molecule, the X-ray structure determination of which had withheld from us. Of course, achieving a chemical synthesis of this vitamin was never expected to open a chemical route for B12 production - it was the extension of the frontiers of natural product synthesis of that time that was at stake. It is true, however, that any new molecular territory discovered by the recognition of important practical consequences of its function and then chartered structurally by physical methods for further study, constitutes a challenge to the mind of the scientist the conqueror, the homo faber, the one who is archetypically driven to put his foot on any important newly discovered molecular temtory by occupying it, that is, by making it in order to possess and explore it. This is the drive that reflects itself in the physicist's Richard Feynman dictum "What I cannot create, I do not understand" and, moreover, it is that human compulsion that lies at the heart of the inextricable interrelation between science and technology.

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