Estrane Derivatives TRIZ Cases
- Continuous-Flow Desulfinylation for High-Purity Estetrol Intermediates
Continuous-flow desulfinylation addresses low-yield estetrol intermediate synthesis while avoiding Pd/C hydrogenation and catalyst-level compliance concerns.
- Estetrol Synthesis via Iodine(V) Oxidation
A process for preparing estetrol using iodine(V) species oxidation.
- Selective Olefination of 11,17-Di-keto Steroids
Selective olefination of 11,17-di-keto steroids yields 11-methylene-17-keto intermediates without protection-deprotection steps.
- 11-Methylene-18-Methyl-Estr-4-en-3,17-dione Synthesis via MnO2 Oxidation
A process synthesizing 11-methylene-18-methyl-estr-4-en-3,17-dione using manganese dioxide oxidation and selective reduction steps.
- GABA Receptor Modulating Compounds for CNS Disorders
Segmented molecular structures optimize GABA receptor interaction, resolving the trade-off between therapeutic efficacy and compound complexity.
- Estetrol Synthesis via OsO4 Oxidation
OsO4 oxidation achieves 99/1 diol ratios, eliminating 15β,16β impurities and boosting yield.