Effect of Extraction Conditions on the Antioxidant Activity of Olive Wood Extracts

Table 1

NMR data (400 MHz, CD₃OD) of (7′′R)-7′′-ethoxyoleuropein (1) and (7′′S)-7′′-ethoxyoleuropein (2).

Position	1		2
	𝛿𝐻, mult. (J in Hz)	𝛿𝐶, mult.	𝛿𝐻, mult. (J in Hz)	𝛿𝐶, mult.
1	5.92, bs	95.0, CH	5.92, bs	95.1, CH
3	7.51, s	155.2, CH	7.52, s	155.2, CH
4	—	109.3, qC	—	109.4, qC
5	3.99, dd (4.5, 9.0)	31.8, CH	3.94–4.00, m	31.7, CH
6a	2.72, dd (4.5, 14.2)	41.1, CH2	2.72, dd (4.4, 14.4)	41.1, CH2
6b	2.47, dd (9.0, 14.2)		2.47, dd (9.1, 14.4)
7	—	173.1, qC	—	173.0, qC
8	6.08, bq (6.9)	124.9, CH	6.09, bq (6.6)	124.9, CH
9	—	130.5, qC	—	130.5, qC
10	1.69 bd (6.9)	13.6, CH3	1.69, bd (6.6)	13.6, CH
11	—	168.7, qC	—	168.7, qC
OCH3	3.71, s	51.9, CH3	3.71, s	51.9, CH3
1′	4.80, d (7.8)	100.8, CH	4.80, d (7.9)	100.8, CH
2′	3.34–3.42, m	74.8, CH	3.34–3.44, m	74.8, CH
3′	3.34–3.42, m	77.9, CH	3.34–3.44, m	77.9, CH
4′	3.34–3.42, m	71.5, CH	3.34–3.44, m	71.5, CH
5′	3.34–3.42, m	78.4, CH	3.34–3.44, m	78.4, CH
6′a	3.89, bd (11.9)	62.7, CH2	3.89, bd (11.8)	62.7, CH2
6′b	3.67, dd (4.9, 11.9)		3.66, dd (4.9, 11.8)
1′′	—	131.3, qC	—	131.4, qC
2′′	6.77, bs	114.9, CH	6.77, bs	114.8, CH
3′′	—	146.5, qC	—	146.6, qC
4′′	—	146.4, qC	—	146.4, qC
5′′	6.75, d (7.6)	116.3, CH	6.75, d (8.3)	116.3, CH
6′′	6.65, bd (7.6)	119.7, CH	6.65, bd (8.3)	119.7, CH
7′′	4.39, dd (4.1, 7.2)	80.7, CH	4.39, dd (4.0, 7.8)	80.6, CH
8′′a	4.02–4.10, m	69.3, CH2	4.14, dd (7.8, 11.2)	69.2, CH2
8′′b	4.02–4.10, m		3.94–4.00, m
OCH 2CH3	3.34–3.42, m	65.2, CH2	3.34–3.44, m	65.2, CH2
OCH2CH 3	1.15, t (7.0)	15.6, CH3	1.15, t (7.0)	15.6, CH3