Enzymatic Synthesis of Chiral C4 Buildin
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Prof. Dr. Hans Jürgen Bestmann; Dr. Ulrich Christian Philipp
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Article
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1991
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John Wiley and Sons
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English
⚖ 371 KB
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methyl protecting groups (BBr,, CHCI,) then gave l a in 70 % yield. The 'H and 13C NMR spectra of 1 a (in D,O/ NaOD) and of 1 b (in CDC1,) reflect the symmetry of the molecules. The methoxyl groups are magnetically equivalent in 1 b, but in the open-chain triester precursor 2b, two