Asymmetric total synthesis of erythromcin. 1. Synthesis of an erythronolide A secoacid derivative via asymmetric induction
作者:R. B. Woodward、E. Logusch、K. P. Nambiar、K. Sakan、D. E. Ward、B. W. Au-Yeung、P. Balaram、L. J. Browne、P. J. Card、C. H. Chen
DOI:10.1021/ja00401a049
日期:1981.6
3210-3213 The specific incorporation per C4 unit, 3.3%, calculated from 13C NMR data (Table I), is identical with that obtained from I4C radioactivity measurements. The signals due to the I3C-enriched carbon atoms in the proton decoupled I3C NMR spectrum of labeled retronecine appear as multiplets (Table
3210-3213 根据 13C NMR 数据(表 I)计算得出的每个 C4 单位的特定掺入率为 3.3%,与从 I4C 放射性测量中获得的数据相同。由于标记的逆转录酶的质子解耦 I3C NMR 光谱中富含 I3C 的碳原子而产生的信号显示为多重峰(表