- CYP450 mediated  (A spironolactone derived alkyloid)
- optical isomerism (C2) : a HSL (homoserine) lactone derivative ?
- A high risks of hyperkalemia (K+) was found with long-term use of Yasmin. 2
- Ethics of birth control with chiral schiff base alkyloids in orthogonal Fmoc-carbonyl nucleophilic catalysis? See Grignard reagent .