TABLE 4

HRESIMS, ESI-MS, and MS/MS data of MII-1–15

Compound	Molecular Formula	HRESIMS			ESIMS		MS²
Compound	Molecular Formula	Parent Ion	m/z Observed (Calc.)	Error	Parent Ion	m/z	Fragment	m/z
				ppm
MII-1^{^a}	C₃₀H₃₃NO₁₆	[M+H]⁺	664.1845 (664.1872)	−4.0	[M−H]⁻	662	[M−H−GA]⁻	486
MII-2^{^b}	C₃₀H₃₅NO₁₅	[M+H]⁺	650.2060 (650.2080)	−3.0	[M−H]⁻	648	[M−H−GA]⁻	472
MII-3	C₂₅H₂₇NO₁₀	[M+H]⁺	502.1688 (502.1708)	−3.9	[M−H]⁻	500	[M−H−GA]⁻	324
MII-4	C₂₅H₂₉NO₁₁	[M+H]⁺	520.1781 (520.1813)	−6.2	[M−H]⁻	518	[M−H−GA]⁻	342
MII-5	C₂₅H₂₉NO₁₁	[M−H]⁻	518.1673 (518.1668)	+0.9	[M−H]⁻	518	[M−H−GA]⁻	342
MII-6	C₂₄H₂₇NO₁₀	[M+H]⁺	490.1692 (490.1708)	−3.2	[M+H]⁺	490	[M+H−GA]⁺	314
MII-7	C₂₅H₂₉NO₁₀	[M−H]⁻	502.1701 (502.1719)	−3.6	[M+H]⁺	504	[M+H−GA]⁺	328
MII-8	C₂₅H₂₉NO₁₀	[M−H]⁻	502.1718 (502.1719)	−0.1	[M+H]⁺	504	[M+H−GA]⁺	328
MII-9	C₂₅H₂₇NO₁₁	[M−H]⁻	516.1527 (516.1511)	+3.0	[M−H]⁻	516	[M−H−GA]⁻	340
MII-10	C₂₄H₂₅NO₁₁	[M−H]⁻	502.1363 (502.1355)	+1.6	[M−H]⁻	502	[M−H−GA]⁻	326
MII-11	C₂₅H₂₇NO₁₂	[M+H]⁺	534.1632 (534.1612)	+3.8	[M−H]⁻	532	[M−H−GA]⁻	356
MII-12	C₂₅H₂₇NO₁₁	[M−H]⁻	516.1528 (516.1511)	+3.2	[M−H]⁻	516	[M−H−GA]⁻	340
MII-13	C₂₆H₂₉NO₁₁	[M−H]⁻	530.1664 (530.1668)	−0.7	[M+H]⁺	532	[M+H−GA]⁺	356
MII-14	C₂₅H₂₇NO₁₀	[M+H]⁺	502.1711 (502.1708)	+0.6	[M+H]⁺	502	[M+H−GA]⁺	326
MII-15	C₂₄H₂₅NO₁₀	[M−H]⁻	486.1413 (486.1406)	+1.5	[M−H]⁻	486	[M−H−GA]⁻	310

↵a MS³: [M−H-2 × C₆H₈O₆]⁻ at m/z 310.
↵b MS³: [M−H−C₆H₈O₆−C₆H₁₀O₅]⁻ at m/z 310.
c GA: C₆H₈O₆.