has functional parent ansamycin carbamate ester hydroquinones organic heterobicyclic compound secondary amino compound geldanamycin retaspimycin (4E,6Z,8S,9S,10E,12S,13R,14S,16R)-19-(allylamino)-13,20,22-trihydroxy-8,14-dimethoxy-4,10,12,16-tetramethyl-3-oxo-2-azabicyclo[16.3.1]docosa-1(22),4,6,10,18,20-hexaen-9-yl carbamate 587.321 587.705 An ansamycin that is tanespimycin in which the benzoquinone moiety has been reduced to the corresponding hydroquinone. A semi-synthetic analogue of geldanamycin, it is used (generally as the hydrochloride salt) in cancer treatment. C31H45N3O8 C=1C(=C(C2=C(C1NC(=O)C(C)=CC=C[C@@H]([C@@H](OC(N)=O)C(C)=C[C@@H]([C@H]([C@H](C[C@@H](C2)C)OC)O)C)OC)O)NCC=C)O CAS:857402-23-4 CHEBI:71975 InChI=1S/C31H45N3O8/c1-8-12-33-26-21-13-17(2)14-25(41-7)27(36)19(4)15-20(5)29(42-31(32)39)24(40-6)11-9-10-18(3)30(38)34-22(28(21)37)16-23(26)35/h8-11,15-17,19,24-25,27,29,33,35-37H,1,12-14H2,2-7H3,(H2,32,39)(H,34,38)/b11-9-,18-10+,20-15+/t17-,19+,24+,25+,27-,29+/m1/s1 KEGG:D09375 OAKGNIRUXAZDQF-TXHRRWQRSA-N Patent:US2006205705 Patent:US2008255080 Patent:WO2005063714 Patent:WO2005095347 Patent:WO2007002093 Patent:WO2010135426 Reaxys:11329862 chebi_ontology retaspimycin semisynthetic derivative