您的当前位置:首页 > 综合 > 纸莎草的化学成分研究(三) 正文
时间:2025-08-16 16:27:50 来源:网络整理 编辑:综合
化合物7无色晶体,分子式为C29H50O,分子量414,25D=-27.1c0.01,CHCl3)。1HNMR400MHz,CDCl3)δ:5.341H,s,H-6),3.511H,m,H
化合物7无色晶体,纸莎分子式为C29H50O,草的成分分子量414,化学25D=-27.1(c0.01,研究CHCl3)。纸莎1HNMR(400MHz,草的成分CDCl3)δ:5.34(1H,化学s,研究H-6),纸莎3.51(1H,草的成分m,化学H-3),研究2.28~1.09(30H,纸莎m),草的成分0.99(3H,化学s,H-19),0.92(3H,d,J=6.5Hz,H-21),0.85(3H,d,J=7.2Hz,H-29),0.84(3H,d,J=6.5Hz,H-26),0.81(3H,d,J=8.6Hz,H-27),0.68(3H,s,H-18);13CNMR(100MHz,CDCl3)δ:140.9(C-5),121.7(C-6),77.8(C-3),56.8(C-14),56.1(C-17),50.2(C-9),45.9(C-4),42.4(C-13),39.8(C-12),37.3(C-24),36.5(C-1),36.2(C-10),34.0(C-22),31.9(C-8、C-20),31.7(C-7),29.7(C-2),29.2(C-16),28.3(C-11),26.1(C-15),24.3(C-23),23.1(C-28),21.1(C-27),19.8(C-19),19.4(C-21),19.1(C-25),18.8(C-29),12.0(C-26),11.9(C-16)。以上数据与文献报道数据基本一致,故鉴定化合物7为β-谷甾醇。
化合物8白色晶体,分子式为C29H46O2,分子量426,25D=-38.1(c0.01,CHCl3)。1HNMR(400MHz,CDCl3)δ:6.18(1H,s,H-4),2.68(1H,dd,J=16.0,4.0Hz,H-7a),2.48~2.59(2H,m,H-7b,H-2b),2.13~2.17(1H,m,H-2a),1.16(3H,s,H-19),0.95(3H,d,J=6.5Hz,H-21),0.84(3H,t,J=2.8Hz,H-29),0.82(3H,d,J=2.1Hz,H-26),0.81(3H,d,J=2.8Hz,H-27),0.71(3H,s,H-18);13CNMR(100MHz,CDCl3)δ:202.4(C-6),199.6(C-3),161.1(C-5),125.5(C-4),56.5(C-9),55.8(C-17),51.0(C-14),46.8(C-13),45.8(C-7),42.5(C-12),39.8(C-10),39.1(C-24),36.0(C-22),35.5(C-1),34.2(C-20),34.0(C-8),33.8(C-2),29.1(C-16),28.0(C-25),26.0(C-28),24.0(C-15),23.0(C-23),20.9(C-26),19.8(C-11),19.0(C-27),18.7(C-21),17.5(C-19),12.0(C-29),11.9(C-18)。以上数据与文献报道数据基本一致,故鉴定化合物8为(24R)-24-乙基胆甾烷-4-烯-3,6-二酮。
化合物9白色晶体,分子式为C29H46O,分子量410,25D=+40.4(c0.13,CHCl3)。1HNMR(400MHz,CDCl3)δ:5.72(1H,s,H-4),5.17(1H,dd,J=16.0,9.0Hz,H-22),5.03(1H,dd,J=16.0,9.0Hz,H-23),1.17(3H,s,H-19),1.02(3H,d,J=7.0Hz,H-21),0.84(3H,d,J=6.0Hz,H-27),0.81(3H,m,H-29),0.80(3H,d,J=6.0Hz,H-26),0.72(3H,s,H-18);13CNMR(100MHz,CDCl3)δ:199.6(C-3),171.7(C-5),138.2(C-22),129.4(C-23),123.7(C-4),55.9(C-17),53.8(C-9),53.5(C-14),51.2(C-24),42.3(C-13),40.5(C-20),39.6(C-12),38.6(C-10),35.7(C-1),35.6(C-8),34.0(C-2),33.8(C-6),33.0(C-7),32.0(C-25),29.0(C-16),25.4(C-28),24.2(C-15),23.0(C-21),21.0(C-27),19.8(C-11),19.0(C-26),17.4(C-19),12.3(C-29),11.9(C-18)。以上数据与文献报道数据基本一致,故鉴定化合物9为豆甾-4,22-二烯-3-酮。
化合物10白色固体,分子式为C29H50O3,分子量446,25D=+17.4(c0.13,CH3OH)。1HNMR(400MHz,CD3OD)δ:4.05(1H,s,H-5b),3.51(1H,m,H-3),0.94(3H,d,J=6.0Hz,H-21),0.85(3H,t,J=6.0Hz,H-29),0.84(3H,d,J=6.0Hz,H-26),0.81(3H,t,J=6.0Hz,H-27),0.80(3H,d,J=6.0Hz,H-26),0.78(3H,s,H-19),0.68(3H,s,H-18);13CNMR(100MHz,CD3OD)δ:217.5(C-6),81.9(C-5),67.5(C-3),58.8(C-14),56.7(C-17),44.8(C-24),43.6(C-10),41.5(C-13),40.5(C-9),40.4(C-7),39.1(C-12),35.3(C-8),34.7(C-4),30.2(C-20),29.8(C-22),28.4(C-25),27.8(C-16),27.2(C-2),27.0(C-23),26.5(C-1),25.4(C-15),23.9(C-28),22.3(C-11),21.5(C-27),20.7(C-26),20.2(C-19、C-21),12.1(C-18、C-29)。以上数据与文献报道数据基本一致,故鉴定化合物10为(24R)-24-乙基-5α-胆甾烷-3β,5-二醇-6-酮。
化合物11白色固体,分子式为C29H48O,分子量412,20D=-51.1(c0.12,CHCl3)。1HNMR(400MHz,CDCl3)δ:5.37(1H,s,H-6),5.18(1H,dd,J=15.0,8.7Hz,H-22),5.01(1H,dd,J=15.0,8.7Hz,H-23),3.51(1H,m,H-3),2.28~1.22(26H,m),1.04(3H,d,J=6.5Hz,H-21),0.99(3H,s,H-19),0.89(3H,t,J=7.2Hz,H-29),0.82(3H,d,J=6.5Hz,H-26),0.81(3H,d,J=8.6Hz,H-27),0.70(3H,s,H-18);13CNMR(100MHz,CDCl3)δ:140.8(C-5),138.3(C-22),129.3(C-23),121.7(C-6),71.8(C-3),56.8(C-17),56.1(C-14),50.2(C-9),45.9(C-24),42.3(C-13),39.8(C-12),37.3(C-4),36.5(C-1),34.0(C-12),31.9(C-7),31.7(C-8),29.2(C-24),28.2(C-2),26.1(C-16),24.3(C-15),23.1(C-27),21.1(C-11),19.8(C-28),19.4(C-29),19.1(C-26),18.8(C-21),12.0(C-19),11.9(C-18)。以上数据与文献报道数据基本一致,故鉴定化合物11为豆甾醇。
化合物12白色固体,分子式为C29H48O2,分子量428,25D=+72.2(c0.17,CHCl3)。1HNMR(400MHz,CDCl3)δ:5.82(1H,s,H-4),4.34(1H,m,H-5),1.39(3H,s,H-19),0.93(3H,d,J=6.5Hz,H-21),0.84(3H,t,J=7.0Hz,H-29),0.83(3H,d,J=7.0Hz,H-26),0.81(3H,d,J=6.5Hz,H-27),0.73(3H,s,H-18);13CNMR(100MHz,CDCl3)δ:200.5(C-3),168.6(C-5),126.3(C-4),73.2(C-6),56.1(C-17),55.9(C-14),53.6(C-9),45.8(C-24),42.5(C-13),39.6(C-12),38.6(C-7),38.0(C-10),37.1(C-1),36.1(C-20),34.3(C-2),33.9(C-22),29.7(C-8),29.2(C-25),28.2(C-16),26.1(C-23),24.2(C-15),23.1(C-28),21.0(C-11),19.8(C-26),19.5(C-19),19.0(C-21),18.7(C-27),12.0(C-29),11.9(C-18)。以上数据与文献报道数据基本一致,故鉴定化合物12为豆甾-4-烯-6β-醇-3-酮。
化合物13白色固体,分子式为C29H48O2,分子量428,25D=+27.2(c0.19,CHCl3)。1HNMR(400MHz,CDCl3)δ:0.99(3H,s,H-19),0.93(3H,d,J=5.7Hz,H-21),0.85(3H,d,J=6.5Hz,H-26),0.84(3H,m,H-29),0.83(3H,d,J=6.6Hz,H-27),0.68(3H,s,H-18);13CNMR(100MHz,CDCl3)δ:211.5(C-6),209.2(C-3),57.5(C-5),56.6(C-17),56.0(C-14),53.5(C-9),46.6(C-7),45.8(C-24),43.0(C-13),41.3(C-10),39.4(C-2),38.1(C-1),38.0(C-12),37.4(C-8),37.0(C-4),36.0(C-20),33.8(C-22),29.2(C-25),28.0(C-16),26.1(C-23),24.0(C-15),23.1(C-28),21.7(C-11),19.8(C-26),19.0(C-27),18.7(C-21),12.2(C-18),12.0(C-29),11.9(C-19)。以上数据与文献报道数据基本一致,故鉴定化合物13为豆甾-3,6-二酮。
声明:本文所用图片、文字来源《天然产物研究与开发》,版权归原作者所有。如涉及作品内容、版权等问题,请与本网联系删除。
相关链接:晶体,分子,化合物
《毁灭战士4》废案曝光 艺术家泄露早期地狱都市设定2025-08-16 16:25
秀恩爱当属风尘四侠!詹皇:我的皇后无条件爱你2025-08-16 16:18
天下晨間新聞:鮑爾準備上場,台積電ADR跌2.9%|天下雜誌2025-08-16 16:13
財經一週:輝達暴跌創歷史、新新併四大劇本、福斯傳關閉德國廠|天下雜誌2025-08-16 16:08
蘑菇房子设计图相关问题解答2025-08-16 16:06
罗秋珠:父爱如兰突破传统营销谋略,打造节庆经济「四会兰花父亲节专属策划」2025-08-16 15:25
大宝贝炮轰里弗斯:他被高估了 08年夺冠靠运气2025-08-16 15:24
日本加严农药唑虫酰胺和嘧啶磺隆在农食产品中的最大残留限量标准2025-08-16 15:19
联想笔记本电脑一季度线上销量销额双第一 领先华为苹果2025-08-16 14:13
格里芬砍17+9+5霍华德两双 快船五人上双擒老鹰2025-08-16 14:11
植物饮料市场的扛把子超级大咖,王老吉!2025-08-16 16:06
八王寺汽水,难念的感觉,难忘的滋味!老汽水,新潮流!2025-08-16 16:04
“情暖寒冬,爱伴童行” 春节走访慰问活动启动2025-08-16 14:59
今晚8:00|昂首奋进新时代 谱写无毒新篇章2025-08-16 14:58
泉州影院做好复映准备正待排片 观影再等几天2025-08-16 14:31
didas Originals推出全新「面包鞋」加宽加厚2025-08-16 14:23
大宝贝炮轰里弗斯:他被高估了 08年夺冠靠运气2025-08-16 14:19
天下財經週報:蘋果iPhone 16將登場,有什麼亮點?|天下雜誌2025-08-16 13:56
跨界爆款,四季适饮!达人乐园邀您吃果汁!2025-08-16 13:46
华泰期货:盘面震荡上行 玻璃现货提涨,期货知识2025-08-16 13:42