New Constituents of Piper guineense Fruit and Leaf

New Constituents of Piper guineense Fruit and Leaf Constituents of Carapa guianensis Aubl. (Meliaceae). New Insecticidal Amides from Petroleum Ether Extract of Dried Piper nigrum L. Whole Fruits. Two New Insecticidal Amides and a New Alcoholic Amide from Piper nigrum Linn. Chemical Constituents of Taraxacum formosanum. Chemical Constituents of Acanthochlamys bracteata. Four New Diarylheptanoids from the Roots of Juglans mandshurica A New Alkaloid from Narcissus serotinus L. Tomato New Sapogenols, Isoesculeogenin A and Esculeogenin B. Sulfur‐Containing Compounds from Clinacanthus siamensis.