O //CH3-CH-C-CH2-CH2-CH2-CH3 | CH3
O //CH3-CH2-CH-C-OH | CH2 | CH / \ CH3 CH3
O //H-C-H
O / \ C CH-OH / \ / \ HO-CH CH-OH \ / \ / CH-OH | CH2-OH
CH3-CH2-NH2
O // O-CH2 / \CH CH-OH| \ / \CH-OH CH-CH-CH2OH \ / \ / O OH