List of used abbreviations - RosDok - Universität Rostock
List of used abbreviations - RosDok - Universität Rostock
List of used abbreviations - RosDok - Universität Rostock
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R 1<br />
+<br />
SAr OSiMe 3<br />
OMe<br />
3a-i,k-m,p<br />
OR<br />
O<br />
11a-c<br />
R 2<br />
i<br />
30<br />
R 1<br />
SAr<br />
12a-r<br />
O<br />
R 2<br />
OMe<br />
Scheme 11. Synthesis <strong>of</strong> 12a-r; conditions: i: 1) TiCl4, CH2Cl2, −78 to 20 °C, 20 h; 2)<br />
NaHCO3, H2O<br />
The structure <strong>of</strong> all products was established by spectroscopic methods. The<br />
structure <strong>of</strong> 12i was independently confirmed by X-ray crystal structure analysis<br />
(Figure 1). 30