C22H32O6, orthorhombic, P212121 (no. 19), a = 8.259(3) & Aring;, b = 21.221(9) & Aring;, c = 23.813(10) & Aring;, V = 4174(3) & Aring;3, Z = 8, R gt (F) = 0.0511, wR ref (F2) = 0.1307, T = 265(2) K.

C20H26O5, monoclinic, P21, a = 14.0782(12) Å, b = 8.6399(7) Å, c = 14.6891(13) Å, β = 101.9593(9), V = 1747.93(3) Å3, Z = 4, R gt(F) = 0.0275, wR ref(F 2) = 0.0736, T = 100(1) K.

Nigranoic acid, an A ring-secocycloartene triterpenoid, was constantly found to possess various biological activities, including anti-inflammation. In this study, fifteen new nigranoic acid ester derivatives were synthesised in good yields and assessed for their anti-inflammation activities. As a result, all the compounds including nigranoic acid could reduce NO production considerably (p < 0.001) at a concentration of 50 μM except for compound 12. Among them, compound 7 showed more NO inhibition potency than others with a concentration of 9.7 μmol/mL and minimal cytotoxicity (cell viability: 100%) in RAW 264.7 cells. Moreover, compound 7 may regulate PTGS2 and NFE2L2 to affect its anti-inflammatory activity through the network pharmacology and molecular docking analysis, indicating its potential as an anti-inflammatory candidate.

C 22 H 32 O 6 , orthorhombic, P 2 1 2 1 2 1 (no. 19), a = 8.259(3) Å, b = 21.221(9) Å, c = 23.813(10) Å, V = 4174(3) Å 3 , Z = 8, R gt ( F ) = 0.0511, wR ref ( F 2 ) = 0.1307, T = 265(2) K.

Three previously undescribed C20-norditerpenoids [abietamethinols H-J (1-3)] and a new guaiane sesquiterpene [guamethinol A (4)] were isolated from Isodon amethystoides (Benth.) H. Hara. Their structures were determined through comprehensive spectroscopic analyses, including single-crystal X-ray diffraction. Compounds 1-4 were evaluated for their cytotoxic, antibacterial, and antiviral activities. Compound 3 showed inhibitory activity against SMMC-7721 cells (IC50 = 36.1 +/- 3.4 mu M). It also exhibited antibacterial activity against Streptococcus mutans (93.4% inhibition at 174 mu M), and antiviral activities against H5N1 avian influenza virus (95.7 %) and vesicular stomatitis virus (76.6 %) at 25 mu M. Furthermore, molecular docking studies indicated that compound 3 binds to the active sites of STAT3, glucosyltransferase B (GtfB), neuraminidase (NA), and TLR4 receptor via hydrogen bonding, it-it stacking and hydrophobic interactions.

Three unprecedented cycloartane triterpenoids (1-3) together with five known congeners (4-8) were isolated for the first time from the medicinal plant Kadsura longipedunculata. Their structural diversity was characterized by distinct skeletal modifications: compound 1 represents a rare 3,4-seco-cycloartane derivative featuring a 7-membered ester A-ring formed via Baeyer-Villiger oxidation, compound 2 is a schisanartane-type nortriterpenoid with unique 3,4:9,10-diseco structural motifs, while compound 3 exhibits an unprecedented 18,28-demethylated cycloartane skeleton. In addition, five known congeners (4-8) were cycloartane triterpenoids. Significantly, these structurally modified derivatives represent the first report of such skeletal variations within the K. longipedunculata genus. Structural elucidation and absolute configuration determination were achieved through comprehensive spectroscopic analysis (one-/two-dimensional nuclear magnetic resonance and high-resolution electrospray ionization-mass spectrometry) complemented by X-ray crystallographic verification and electronic circular dichroism calculation. These compounds were evaluated for their cytotoxicity and anti-inflammatory activity. Compounds 4 and 5 could inhibit nitric oxide production with 50% inhibitory concentration (IC50) values of 36.45 and 28.38 µM. Compound 4 demonstrated concentration-dependent antiproliferative effects against HeLa cervical cancer cells, achieving 68.99% growth inhibition at 40 µM and an IC50 value of 21.40 µM.

Lonicera japonica and L. macranthoides are popular medicinal plants used for treating various diseases. Recently, new chromosome level genomes of Lonicera have provided a huge resource for understanding gene function. Although LjaFGD was created for analyzing L. japonica gene functions, it is now outdated due to updated genomes and more transcriptome data. Utilizing new chromosome-level genomic and transcriptomic data, we developed co-expression networks of L. japonica and L. macranthoides. Gene annotations were performed by comparing sequences with NR, TAIR, Swissprot, and trEMBL databases. GO and KEGG annotations were predicted using InterProScan and GhostKOALA software, while gene families were identified with iTAK, HMMER, and InParanoid. To fully leverage the utilization value of public resources and data, we developed LoniComp ( www.gzybioinformatics.cn/LoniComp ) as a newer and information-rich alternative, a platform for gene function comparison and analysis by integrating genomic, transcriptomic data and processed functional annotations. It features tools like BLAST, Extract Sequence, Enrichment, Heatmap, DEG, and JBrowse2. We demonstrated its use with examples like LjFT and LjMYB12. It offers superior genomic data, transcriptomic resources, and analysis tools compared to LjaFGD, aiding researchers in gene function studies and comparison.

Diterpenoids from the genus Pteris have demonstrated consistent anticancer properties. In the present study, five previously undescribed (1-5) and four known diterpenoids (6-9) were isolated from the 95 % methanol extract of P. decrescens. Among them, decrescensin A (1), represents the first naturally occurring example of a 15(8 → 9)-abeo-ent-kauranoid. The structures of these compounds were established based on their spectroscopic data and single-crystal X-ray diffraction. Compounds 1-9 have been evaluated for their cytotoxic effects against a panel of cancer cell lines including HeLa, HepG2, A549 and SW480. Compound 1 showed significant activity in SW480 cells with an IC50 value of 0.46 μM. In addition, compounds 4 and 6 displayed a mild prolongation effect on activated partial thromboplastin time.

C22H26O6, orthorhombic, P212121 (no. 19), a = 7.6648(5) Å, b = 11.2663(6) Å, c = 22.7321(7) Å, V = 1963.0(2) Å3, Z = 4, Rgt (F) = 0.0652, wRref (F 2) = 0.1399, T = 273(2) K.

Rosa roxburghii Tratt, a valuable plant in China with long history, is famous for its fruit. It possesses various secondary metabolites, such as L-ascorbic acid (vitamin C), alkaloids and poly saccharides, which make it a high nutritional and medicinal value. Here we characterized the chromosome-level genome sequence of R. roxburghii, comprising seven pseudo-chromosomes with a total size of 531 Mb and a heterozygosity of 0.25%. We also annotated 45,226 coding gene loci after masking repeat elements. Orthologs for 90.1% of the Complete Single-Copy BUSCOs were found in the R. roxburghii annotation. By aligning with protein sequences from public platform, we annotated 85.89% genes from R. roxburghii. Comparative genomic analysis revealed that R. roxburghii diverged from Rosa chinensis approximately 5.58 to 13.17 million years ago, and no whole-genome duplication event occurred after the divergence from eudicots. To fully utilize this genomic resource, we constructed a genomic database RroFGD with various analysis tools. Otherwise, 69 enzyme genes involved in L-ascorbate biosynthesis were identified and a key enzyme in the biosynthesis of vitamin C, GDH (L-Gal-1-dehydrogenase), is used as an example to introduce the functions of the database. This genome and database will facilitate the future investigations into gene function and molecular breeding in R. roxburghii.

C32H44O6, monoclinic, P21 (no. 4), a = 12.2561 Å, b = 10.3674(4) Å, c = 23.3835(8) Å, β = 98.463°, V = 2938.85(19) Å3, Z = 2, Rgt(F) = 0.0602, wRref(F2) = 0.1537, T = 273(2) K.

Seven undescribed abietane diterpenoids [abietamethinols A-G (1-7)] were isolated from the twigs and leaves of Isodon amethystoides. Their structures were elucidated on the basis of spectroscopic methods including 2D NMR, and they were further confirmed by X-ray crystallographic data. Lophanic acid was considered as the precursor of 1-7 in the biosynthesis pathway hypothesis. These compounds were evaluated for their cytotoxic, anti-bacterial and anti-AIV (avian influenza virus) activities. Compound 5 showed 42.9% inhibitory activity against the cancer cell line SMMC-7721 at the concentration of 40 μM, 3 and 4 could inhibit the bacterial growth of Streptococcus sobrinus by 55.3% and 63.2% at the concentrations of 148.6 and 141.9 μM, respectively, and 4 was demonstrated with antiviral activity against AIV with the inhibitory effect of 68.4% at 25 μM.

Here we develop a direct and efficient protocol for 3-halooxidation of indoles using DMSO as the oxygen source and NXS (X 1/4 Br, Cl) the halo source. This protocol features broad substrate scope and good to excellent yields, thus rendering it as a highly versatile, straightforward, and atom-economical alternative prior to the previously reported methods, which possess their capability to undergo the SN1 substitution of a highly reactive electrophilic o-azaxylylene intermediate to generate 3, 3-disubstituted oxindoles. (c) 2023 Elsevier Ltd. All rights reserved.

通过单因素试验结合响应面法,以VC当量抗氧化能力(VCEAC)为指标,优化黔产狭叶落地梅全草抗氧化活性成分的最佳提取工艺.在此基础上,比较狭叶落地梅不同产地和部位提取物中总黄酮和总酚含量,评价提取物及其与VC复配物的抗氧化活性,并进行相关性和聚类分析.结果表明:(1)黔产狭叶落地梅全草抗氧化有效物质最佳提取工艺为:乙醇体积分数50%、料液比1∶24(g/mL)、提取时间191 min.(2)不同产地和部位提取物的VCEAC(82.63～210.46 mg/g)、总黄酮(126.38～361.79 mg/g)和总酚(43.60～112.19 mg/g)含量以及清除DPPH(0.12～0.45 mg/mL)和ABTS+(0.11～0.36 mg/mL)自由基的半数抑制率差异明显,相关性显著,整体以批次S3、S4质量最佳,且根>茎>全草>叶.(3)复配比为1∶5(提取物∶VC)时,两者联合作用最强,对清除DPPH、ABTS+自由基均有促进作用.

Abstract C24H30O7, orthorhombic, P212121 (no. 19), a = 11.4194(5) Å, b = 13.4657(6) Å, c = 14.7549(7) Å, V = 2268.86(18) Å3, Z = 4, Rgt (F) = 0.0535, wRref (F 2) = 0.1239, T = 273(2) K.

Objective: To built up the quality standard of Luling Anshen Granules. Methods: TLC was used to identify Atractylodis macrocephalae rhizoma and Dendrobium fimbriatum caulis in the preparation. HPLC was adopted to measure the content of pachymic acid with welch ultimate XB-C18（4.6×250 mm, 5 μm） column, the mobile phase was acetonitrile-0.5% phosphoric acid solution（83∶17,V/V）, and the detection wavelength was 210 nm. Results: The TLC spots had good separation without negative interference. Poria acid showed a good linear relationship in the range of 0.199 ～1.196 μg, and the average recovery was 97.79%（RSD=1.77%）. Conclusion: The detection method of TLC and HPLC is not difficult and specific, which can be available for the quality control of Luling Anshen Granules.

目的:研究贵州水族用于治疗跌打损伤的常见药物.方法:通过前往贵州水族主要聚居地黔南布依族苗族自治州和黔东南苗族侗族自治州等地进行实地考察并查阅文献、资料,整理、归纳贵州水族常用于治疗跌打损伤的药物.结果:共整理贵州水族用于治疗跌打损伤的常见药物18种.结论:贵州水族常用这些植物治疗常见病、多发病,尤其在治疗跌打损伤方面具有较好疗效.

目的 建立大蝎子草的质量标准及指纹图谱.方法 TLC法定性鉴别大蝎子草中的东莨菪内酯,根据2020年版《中国药典》及《国家药品标准工作手册》相关方法测定其水分、总灰分、酸不溶性灰分、浸出物.采用HPLC法建立指纹图谱,该药物的分析采用Agilent C18色谱柱(250 mmx4.6mm,5 μm);流动相0.1％甲酸-乙腈,梯度洗脱;体积流量1.2mL/min;柱温30℃;检测波长290 nm.采用主成分分析、聚类分析对指纹图谱进行评价,HPLC法测定对羟基肉桂酸、东莨菪内酯、紫云英苷含量.结果 TLC显示清晰斑点,分离度好.大蝎子草的水分、总灰分、酸不溶性灰分、浸出物含量分别为 9.39％～14.63％、15.13％～19.00％、0.87％～4.80％、15.59％～23.85％.共筛选出9个共有色谱峰,13批样品相似度均在0.900以上,主成分分析和聚类分析结果一致.对羟基肉桂酸、东莨菪内酯、紫云英苷的平均含量分别为0.060 5、0.0216、0.124 3 mg/g.结论 含量测定方法稳定、准确性好;指纹图谱方法分离度良好,稳定可靠,可为完善大蝎子草的质量控制方法提供参考.建议大蝎子草水分不得过13.0％,总灰分不得过21.0％,酸不溶性灰分不得过5.0％,水溶性浸出物(热浸法)含量不得少于14.0％,紫云英苷含量不得少于 0.010％.

Abstract C30H40O5, orthorhombic, P212121 (no. 19), a = 6.5012(3) Å, b = 15.3297(7) Å, c = 21.8138(14) Å, V = 2672.3(2) Å3, Z = 4, Rgt (F) = 0.0537, wRref (F 2) = 0.1355, T = 273(2) K.

A phytochemical investigation on Isodon flavidus led to the isolation of flavidanolide A (1), a rearranged diterpenoid featuring a six/seven/five-membered tricyclic skeleton, together with flavidanolide B (2), an uncommon heterodimeric diterpenoid consisting of a norabietane and a seco-isopimarane monomeric units. Their structures were elucidated by extensive spectroscopic data and single-crystal X-ray diffraction analyses. Their plausible biosynthetic routes were also proposed. In the bioassay, flavidanolide B was found to exhibit good inhibitory effect against lipopolysaccharide (LPS)-induced nitric oxide (NO) production in RAW264.7 cells comparable to positive control pyrrolidinedithiocarbamate ammonium (PDTC), which provided evidence for the medicinal value of I. flavidus as a folk medicine for treating inflammatory diseases.