title: Isolation of ciliatamide D from a marine sponge Stelletta sp. and a reinvestigation of the configuration of ciliatamide A.
abstract: A new lipopeptide, ciliatamide D (1), was isolated from a marine sponge Stelletta sp., collected at Oshimashinsone, together with the known compound ciliatamide A (2). Ciliatamide D (1) is a congener of 2, in which N-Me-Phe is replaced by N-Me-Met(O). Marfey's analysis of the acid hydrolysate of 1 demonstrated that the two constituent amino acids were both in the l-form. This result prompted us to carefully investigate the configuration of 2, resulting in the assignment of the l-form for both residues.
authors: Laboratory of Aquatic Natural Products Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo , Bunkyo-ku, Tokyo 113-8657, Japan.
authors: Yasufumi
authors: Y
authors: Imae
authors: Kentaro
authors: K
authors: Takada
authors: Shigeru
authors: S
authors: Okada
authors: Yuji
authors: Y
authors: Ise
authors: Hiroshi
authors: H
authors: Yoshimura
authors: Yasuhiro
authors: Y
authors: Morii
authors: Shigeki
authors: S
authors: Matsunaga
mesh_terms: D000818:Animals; D055666:Lipopeptides / Q000737:chemistry* / Q000302:isolation & purification*; D008386:Marine Biology; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D009792:Oceans and Seas; D011161:Porifera / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: D055666:Lipopeptides; C529041:ciliatamide A