Figure 2.

ESI-MS for glycopeptides 16. Chemical formula: C₄₈₆H₇₉₁N₁₃₁O₁₆₁S₂, calc. Mass: 11102.72, [M+6H]⁶⁺: 1851.45, [M+7H]⁷⁺: 1587.10, [M+8H]⁸⁺: 1388.84, [M+9H]⁹⁺: 1234.64, [M+10H]¹⁰⁺: 1111.27, [M+11H]¹¹⁺: 1010.34, [M+12H]¹²⁺: 926.23; Observed mass: [M+6H]⁶⁺: 1852.31, [M+7H]⁷⁺: 1588.08, [M+8H]⁸⁺: 1389.84, [M+9H]⁹⁺: 1235.09, [M+10H]¹⁰⁺: 1111.95, [M+11H]¹¹⁺: 1010.94, [M+12H]¹²⁺: 927.18