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. 2017 Feb 7;12:1047–1064. doi: 10.2147/IJN.S115215

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© 2017 Gao et al. This work is published and licensed by Dove Medical Press Limited

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Synthesis of PHIS-PEG₂₀₀₀ and 7pep-DSPE-PEG₂₀₀₀.

Notes: (A) Synthesis scheme of PHIS-PEG₂₀₀₀ and 7pep-DSPE-PEG₂₀₀₀. Mass spectrum of (B) PHIS-PEG₂₀₀₀ and (C) 7pep-DSPE-PEG₂₀₀₀.

Abbreviations: PHIS-PEG₂₀₀₀, poly(l-histidine)-coupled polyethylene glycol-2000; 7pep-DSPE-PEG₂₀₀₀, 7pep-modified 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-polyethylene glycol-2000; 7pep, HAIYPRH, a TfR ligand; DSPE-PEG₂₀₀₀, 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-polyethylene glycol-2000; PEG₂₀₀₀, polyethylene glycol-2000; PHIS, poly(l-histidine); MDF, dimethylformamide; DMSO, dimethyl sulfoxide; NHS, succinimidyl ester; DMF, dimethylformamide; rt, room temperature; h, hours; P.Ext, primer extension; Int, intensity.