Aryltricyclospirodienones; novel steroid mimics as inhibitors of aromatase

Cascade Reactions of β‐Amino‐Substituted α,β‐Unsaturated Fischer Carbene Complexes with 1,5‐Dien‐3‐ynes as a Convenient Access to Ring‐Annelated Benzene Derivatives

“…[5b] 1-bromo-1-cyclopentene (5a), [20] 1-bromo-1-cyclohexene (5b), [20] 5-bromo-3,4-dihydro-2H-pyran (5c), [20] 3-bromo-1,2-dihydronaphthalene (5e), [21] 2-bromo-6-methoxy-3,4-dihydro-2H-naphthalen-1-one, [22] 2-bromo-6-methoxy-1,2,3,4-tetrahydronaphthalen-1-ol, [21] (-)-4a-methyl-4,4a,5,6,7,8-hexahydro-3H-naphthalen-2-one, [23] 1-ethynyl-1-cyclopentene (6a), [24] 2-methyl-1-buten-3-yne (6h), [24] 1-ethynyl-1-cyclohexene (6b), [24] 1-buten-3-yne (6i), [24] 2,5-dimethyl-1,5-hexadien-3-yne (2hh), [25] pentacarbonyl [18] were prepared according to published procedures.…”