Synergism and the mechanism of action of the combination of α-mangostin isolated from Garcinia mangostana L. and oxacillin against an oxacillin-resistant Staphylococcus saprophyticus

Table 2 The 300 MHz ¹³C NMR (acetone-d6), spectral data of α-mangostin

Chemical Shift (δ, ppm)	Assignment	Chemical Shift (δ, ppm) from reference [15]
182.81	C-9	181.8
162.92	C-3	161.6
161.40	C-1	160.2
157.39	C-6	155.4
156.23	C-10a	155.2
155.65	C-4a	154.8
144.51	C-7	142.7
138.14	C-8	137.2
131.39	C-13	131.7
124.82	C-17	123.4
123.50	C-12	122.1
112.06	C-8a	111.7
111.00	C-2	109.7
103.63	C-9a	103.1
102.67	C-5	101.6
93.15	C-4	92.4
61.31	7-OCH₃	61.2
26.89	C-11	26.3
25.92	C-14	25.7
25.88	C-19	20.7
22.00	C-16	21.3
18.29	C-20	18.1
17.90	C-15	17.7

ISSN: 1471-2180