请大家帮忙翻译一段话（和核磁共振有关）

来源：百度知道 编辑：UC知道 时间：2024/05/30 17:54:21
The 1H NMR signals of α,β-unsaturated ketone were observed at ca. δH 7.10 and 5.90 for H-1 and H-2, respectively, (each doublet with J value ca.10Hz),while a β-furan 1H NMR signals resonated at ca. δH 7.45, 7.35 and 6.25 identified to H-23,H-21, and H-22, respectively. In compound 1 two additional oxymethine atδH 5.31 (1H, br d, J = 9.6 Hz) and 5.20 (1H, br s, H-7) together with two acetoxymethyl groups at δH 2.06 (3H, s, 6-OCOCH3) and 2.01 (3H, s, 7-OCOCH3) were observed , in 1H NMR spectrum, which were located at C-6 and C-7, respectively 。

核磁共振信号的α ， β -不饱和酮，观察在CA 。 δH 7.10和5.90的H - 1和H - 2 ，分别为（每双与J值ca.10Hz ） ，而β -呋喃的1H NMR信号共鸣在CA 。 δH 7.45 ， 7.35和6.25查明至H - 23 ，氢21 ，和H - 22 ，分别。复方1两个额外oxymethine atδH 5月31日（ 1小时，巴d ，强= 9.6赫兹）和5月20日（ 1小时，巴秒，氢7 ）连同两名acetoxymethyl群体δH 2.06 （ 3小时，硫， 6 OCOCH3 ）和2.01 （ 3小时，硫， 7 OCOCH3 ）观察到，在1H NMR谱，这是分别位于C - 6和C - 7 ，