Fig. 4From: Structure–activity relationships in a series of antiplasmodial thieno[2,3-b]pyridinesEnantiomers of thieno[2,3-b]pyridine 4b. The rotation around the biaryl bond connecting the heterocycle and the 4-phenyl substituent is hindered by the ortho chloro substituent at the phenyl ring and the ortho cyano substituent in combination with the thieno anneland at the pyridine ringBack to article page