[{"from": "human", "value": "What can you tell me about this molecule? [C][C][=Branch1][C][=O][O][C][C@@H1][C@H1][Branch2][#Branch2][P][C@@H1][Branch2][#Branch2][N][C@@H1][Branch2][Branch2][=C][C@H1][Branch1][Ring2][O][Ring1][=Branch1][O][C@H1][C@@H1][Branch2][#Branch1][P][C@H1][Branch2][#Branch1][O][O][C@@H1][Branch2][Ring1][=Branch1][C@H1][Ring1][=Branch1][O][C@H1][C@@H1][Branch1][=N][C@H1][Branch1][=Branch2][C@@H1][Branch1][Branch1][C][O][Ring1][=Branch1][O][O][O][O][C@H1][C@@H1][Branch2][Branch1][#Branch2][C@H1][Branch2][Ring2][#C][O][C@@H1][Branch2][Ring1][=Branch1][C@H1][Ring1][=Branch1][O][C@H1][C@@H1][Branch1][=N][C@H1][Branch1][=Branch2][C@@H1][Branch1][Branch1][C][O][Ring1][=Branch1][O][O][O][O][C@H1][C@@H1][Branch1][#C][C@H1][Branch1][#Branch2][O][C@@H1][Branch1][Branch1][C@H1][Ring1][=Branch1][O][O][C][O][O][C][O][C][=Branch1][C][=O][C][O][C][O][O][O][C@H1][C@@H1][Branch2][Ring1][Ring2][C@H1][Branch1][S][C@@H1][Branch1][N][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][=Branch1][C][=O][O][O][O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a branched heptasaccharide derivative consisting of a backbone of four alpha-D-mannose residues linked sequentially (1->3), with the residues at the non-reducing end and at the one proximal to the residue at the reducing end acetylated at O-6, and with a beta-D-glucuronosyl residue and two beta-D-xylosyl residues linked (1->2) to the main chain as shown in the diagram. One of a number of synthetic oligosaccharides used to create a synthetic strategy to Cryptococcus neoformans glucuronoxylomannan (GXM) capsular polysaccharide part structures."}]