Zosurabalpin

Zosurabalpin (RG6006, Abx-MCP, Ro7223280) is an experimental antibiotic developed in a collaboration between the pharmaceutical company Roche and scientists from Harvard University, for the treatment of carbapenem-resistant Acinetobacter baumannii (CRAB). It targets a lipopolysaccharide transporter.^[1] It works by recognizing a composite binding site made up of both the Lpt transporter and its LPS substrate.^[2] The chemical family to which it belongs was first disclosed in 2019, but the particular structure of RG6006 remained confidential until publication of the testing results in 2023.^[3][4][5]

Zosurabalpin

Clinical data
Other names	N2.2.2.1,3-anhydro(N2-[(2-([2-(aminomethyl)-4'-carboxy[1,1'-biphenyl]-3-yl]sulfanyl)pyridin-3-yl)methyl]-L-ornithyl-L-lysyl-N-methyl-L-tryptophan
Identifiers
IUPAC name 4-[(11S,14S,17S)-14-(4-aminobutyl)-11-(3-aminopropyl)-17-(1H-indol-3-ylmethyl)-16-methyl-12,15,18-trioxo-2-thia-4,10,13,16,19-pentazatricyclo[19.4.0.03,8]pentacosa-1(25),3(8),4,6,21,23-hexaen-22-yl]benzoic acid
CAS Number	2379336-76-0
PubChem CID	148636827
UNII	5Y6W5N1U0S
Chemical and physical data
Formula	C43H50N8O5S
Molar mass	790.98 g·mol−1
3D model (JSmol)	Interactive image
SMILES CN1[C@H](C(=O)NCC2=C(C=CC=C2SC3=C(CN[C@H](C(=O)N[C@H](C1=O)CCCCN)CCCN)C=CC=N3)C4=CC=C(C=C4)C(=O)O)CC5=CNC6=CC=CC=C65
InChI InChI=1S/C43H50N8O5S/c1-51-37(23-30-25-47-34-12-3-2-10-32(30)34)40(53)49-26-33-31(27-16-18-28(19-17-27)43(55)56)11-6-15-38(33)57-41-29(9-8-22-46-41)24-48-35(14-7-21-45)39(52)50-36(42(51)54)13-4-5-20-44/h2-3,6,8-12,15-19,22,25,35-37,47-48H,4-5,7,13-14,20-21,23-24,26,44-45H2,1H3,(H,49,53)(H,50,52)(H,55,56)/t35-,36-,37-/m0/s1 Key:NJFUXFYUHIHHOJ-FSEITFBQSA-N

See also

• Clovibactin
• Novobiocin
• Teixobactin