Chemical constituents from leaves of Ananas comosus and their biological activities Chemical constituents of Artemisia anomala Chemical constituents in whole herb of Cardiospermum halicacabum (I) Chemical constituents from root tubers of Fagopyrum dibotrys Chemical constituents from radix and rhizome of Myrsine stolonifera Chemical constituents from Scilla scilloides Chemical constituents from stems and leaves of Cryptolepis buchananii