Synthesis and Crystal Structure of Benzoyloxymethyl (4α,8β,13β)-13-methyl-16-oxo-17-norkauran-18-carbonate Ester
✍ Scribed by Jin Cai; Wen Zhou; Junqing Chen; Min Sun; Min Ji
- Publisher
- Springer
- Year
- 2008
- Tongue
- English
- Weight
- 273 KB
- Volume
- 39
- Category
- Article
- ISSN
- 1572-8854
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
CH,(18) + 14-CH3; 2.07, s CH,( 4) (CDCI,);not yet crystalli~ed]~). Finally, 8 was converted by catalytic hydrogenation [5%-Pd/C in ethanol/triethylamine; + 11 and cyclisation [HCl in acetic acid] into 3-oxo-17~-acetoxy-14a-methyl-A4-8a,9B,lOa,13a-estrene (12) [m.p. 86-88'; -[ U ] D = + 1' (CHC1,).
## Abstract __Zusammenfassung__. Im Rahmen der vorliegenden Mitteilung berichten wir über den partial‐synthetischen Aufbau von 3‐Oxo‐17 β‐acetoxy‐14α‐methyl‐Δ^4^‐8α, 9β, 10α, 13α‐östren (**12**), dessen Struktur anschliessend mittels dreidimensionaler Röntgenanalyse [2] sichergestellt worden ist. A