- Enzymatic oxidative cyclisation reactions leading to dibenzoazocanes
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From simple N-isovanillyltyramine derivatives double oxidative biotransformations can be achieved using tyrosinase leading to the corresponding hydroxylated dibenzoazocanes. Georg Thieme Verlag Stuttgart.
- Tozzi, Francesco,Ley, Steven V.,Kitching, Matthew O.,Baxendale, Ian R.
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supporting information; experimental part
p. 1919 - 1922
(2010/10/02)
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- Processes for the preparation of derivatives of 4a, 5, 9, 10, 11, 12-hexahydro-6H-benzofuro-[3a, 3, 2-ef][2]benzazepine
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The invention relates to processes for the preparation of 4a,5,9,10,11,12-hexahydro-6H-benzofuro[3a,3,2-ef][2]benzazepine, or derivatives thereof. Furthermore, the invention also relates to the compounds formed during the preparation of 4a, 5,9,10,11,12-hexahydro-6H-benzofuro[3a,3,2-ef][2]benzazepine.
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- Processes for the preparation of derivatives of 4a,5,9,10,11,12-hexahydro-6H-benzofuro-[3a,3,2-ef][2]benzazepine
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The invention relates to processes for the preparation of 4a,5,9,10,11,12-hexahydro-6H-benzofuro(3a,3,2-ef)(2)benzazepine, or derivatives thereof. Furthermore, the invention also relates to the compounds formed during the preparation of 4a,5,9,10,11,12-hexahydro-6H-benzofuro(3a,3,2-ef)(2)benzazepine.
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- An improved synthesis of galanthamine
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Modifications in the total synthesis of the Amarylidaceae alkaloid of galanthamine from commercially available isovanillin and tyramine have resulted in a shortened reaction sequence, which is amenable to upscaling and in improved product yield.
- Szewczyk,Lewin,Carroll
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p. 1809 - 1811
(2007/10/02)
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