title: Spiroquinazoline, a novel substance P inhibitor with a new carbon skeleton, isolated from Aspergillus flavipes.
abstract: A novel substance P inhibitor, spiroquinazoline [1], was isolated from the fungus Aspergillus flavipes, which was originally obtained from soil. The structure of 1 was determined by analysis of spectroscopic data and 1 was shown to contain a new carbon skeleton containing a spiro-carbon center. Also isolated from the same culture extract were the new natural product, benzodiazepiedione [3], and the known compounds, acyl aszonalenin [4], N-benzoyl-L-phenylalaninol, and seven diketopiperazines.
authors.affiliation: Natural Products Chemistry, Sterling Winthrop Pharmaceuticals Research Division, Malvern, PA 19355.
authors.forename: C J
authors.initials: CJ
authors.lastname: Barrow
authors.forename: H H
authors.initials: HH
authors.lastname: Sun
mesh_terms: D000970:Antineoplastic Agents / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D001230:Aspergillus / Q000737:chemistry*; D001254:Astrocytoma / Q000378:metabolism; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D009423:Nervous System Neoplasms / Q000378:metabolism; D018040:Receptors, Neurokinin-1 / Q000187:drug effects; D013056:Spectrophotometry, Ultraviolet; D013141:Spiro Compounds / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D013237:Stereoisomerism; D013373:Substance P / Q000037:antagonists & inhibitors*; D014407:Tumor Cells, Cultured
chemical_list: D000970:Antineoplastic Agents; D018040:Receptors, Neurokinin-1; D013141:Spiro Compounds; C088106:spiroquinazoline; D013373:Substance P