Synthesis of 11-demethyl and 6, 6, 11-demethyl calanolides A (6-9) hav been carried out by a four-step reaction sequence using a simple approach in order to in
An intramolecular nucleophilic substitution of carbon anion to cyclic sulfate was first employed in asymmetric synthesis of (+)-(3R, 4S 5R, 7S)-neroclausenamide
At the 45th Women’s World Team Table Tennis Championships in Kuala Lumpur, the Chinese Women’s Team defeated their sister team—Chinese Taipei—to win the go