Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2009232348', 'doi': 'https://doi.org/10.1080/14786410410001714687', 'title': 'Two new diterpene polyesters from<i>Euphorbia decipiens</i>', 'display_name': 'Two new diterpene polyesters from<i>Euphorbia decipiens</i>', 'publication_year': 2005, 'publication_date': '2005-04-01', 'ids': {'openalex': 'https://openalex.org/W2009232348', 'doi': 'https://doi.org/10.1080/14786410410001714687', 'mag': '2009232348', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/15702640'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1080/14786410410001714687', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S205999849', 'display_name': 'Natural Product Research', 'issn_l': '1478-6419', 'issn': ['1478-6419', '1478-6427'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320547', 'host_organization_name': 'Taylor & Francis', 'host_organization_lineage': ['https://openalex.org/P4310320547'], 'host_organization_lineage_names': ['Taylor & Francis'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref', 'pubmed'], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5045838478', 'display_name': 'Viqar Uddin Ahmad', 'orcid': 'https://orcid.org/0000-0002-6782-7382'}, 'institutions': [{'id': 'https://openalex.org/I4210121526', 'display_name': 'International Center for Chemical and Biological Sciences', 'ror': 'https://ror.org/024ghrf67', 'country_code': 'PK', 'type': 'facility', 'lineage': ['https://openalex.org/I4210121526']}, {'id': 'https://openalex.org/I193670377', 'display_name': 'University of Karachi', 'ror': 'https://ror.org/05bbbc791', 'country_code': 'PK', 'type': 'education', 'lineage': ['https://openalex.org/I193670377']}], 'countries': ['PK'], 'is_corresponding': False, 'raw_author_name': 'Viqar Uddin Ahmad', 'raw_affiliation_strings': ['a H.E.J. Research Institute of Chemistry , University of Karachi , Karachi-75270, Pakistan'], 'affiliations': [{'raw_affiliation_string': 'a H.E.J. Research Institute of Chemistry , University of Karachi , Karachi-75270, Pakistan', 'institution_ids': ['https://openalex.org/I4210121526', 'https://openalex.org/I193670377']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5101048657', 'display_name': 'Javid Hussain', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I193670377', 'display_name': 'University of Karachi', 'ror': 'https://ror.org/05bbbc791', 'country_code': 'PK', 'type': 'education', 'lineage': ['https://openalex.org/I193670377']}, {'id': 'https://openalex.org/I4210121526', 'display_name': 'International Center for Chemical and Biological Sciences', 'ror': 'https://ror.org/024ghrf67', 'country_code': 'PK', 'type': 'facility', 'lineage': ['https://openalex.org/I4210121526']}], 'countries': ['PK'], 'is_corresponding': False, 'raw_author_name': 'Javid Hussain', 'raw_affiliation_strings': ['a H.E.J. Research Institute of Chemistry , University of Karachi , Karachi-75270, Pakistan'], 'affiliations': [{'raw_affiliation_string': 'a H.E.J. Research Institute of Chemistry , University of Karachi , Karachi-75270, Pakistan', 'institution_ids': ['https://openalex.org/I193670377', 'https://openalex.org/I4210121526']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5072783254', 'display_name': 'Hidayat Hussain', 'orcid': 'https://orcid.org/0000-0002-8654-8127'}, 'institutions': [{'id': 'https://openalex.org/I193670377', 'display_name': 'University of Karachi', 'ror': 'https://ror.org/05bbbc791', 'country_code': 'PK', 'type': 'education', 'lineage': ['https://openalex.org/I193670377']}, {'id': 'https://openalex.org/I4210121526', 'display_name': 'International Center for Chemical and Biological Sciences', 'ror': 'https://ror.org/024ghrf67', 'country_code': 'PK', 'type': 'facility', 'lineage': ['https://openalex.org/I4210121526']}], 'countries': ['PK'], 'is_corresponding': False, 'raw_author_name': 'Hidayat Hussain', 'raw_affiliation_strings': ['a H.E.J. Research Institute of Chemistry , University of Karachi , Karachi-75270, Pakistan'], 'affiliations': [{'raw_affiliation_string': 'a H.E.J. Research Institute of Chemistry , University of Karachi , Karachi-75270, Pakistan', 'institution_ids': ['https://openalex.org/I193670377', 'https://openalex.org/I4210121526']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5049137960', 'display_name': 'Umar Farooq', 'orcid': 'https://orcid.org/0000-0001-5557-2776'}, 'institutions': [{'id': 'https://openalex.org/I193670377', 'display_name': 'University of Karachi', 'ror': 'https://ror.org/05bbbc791', 'country_code': 'PK', 'type': 'education', 'lineage': ['https://openalex.org/I193670377']}, {'id': 'https://openalex.org/I4210121526', 'display_name': 'International Center for Chemical and Biological Sciences', 'ror': 'https://ror.org/024ghrf67', 'country_code': 'PK', 'type': 'facility', 'lineage': ['https://openalex.org/I4210121526']}], 'countries': ['PK'], 'is_corresponding': False, 'raw_author_name': 'Umar Farooq Farmanullah', 'raw_affiliation_strings': ['a H.E.J. Research Institute of Chemistry , University of Karachi , Karachi-75270, Pakistan'], 'affiliations': [{'raw_affiliation_string': 'a H.E.J. Research Institute of Chemistry , University of Karachi , Karachi-75270, Pakistan', 'institution_ids': ['https://openalex.org/I193670377', 'https://openalex.org/I4210121526']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5011576296', 'display_name': 'Muhammad Arif Lodhi', 'orcid': 'https://orcid.org/0000-0003-2120-884X'}, 'institutions': [{'id': 'https://openalex.org/I193670377', 'display_name': 'University of Karachi', 'ror': 'https://ror.org/05bbbc791', 'country_code': 'PK', 'type': 'education', 'lineage': ['https://openalex.org/I193670377']}, {'id': 'https://openalex.org/I4210121526', 'display_name': 'International Center for Chemical and Biological Sciences', 'ror': 'https://ror.org/024ghrf67', 'country_code': 'PK', 'type': 'facility', 'lineage': ['https://openalex.org/I4210121526']}], 'countries': ['PK'], 'is_corresponding': False, 'raw_author_name': 'M. Arif Lodhi', 'raw_affiliation_strings': ['a H.E.J. Research Institute of Chemistry , University of Karachi , Karachi-75270, Pakistan'], 'affiliations': [{'raw_affiliation_string': 'a H.E.J. Research Institute of Chemistry , University of Karachi , Karachi-75270, Pakistan', 'institution_ids': ['https://openalex.org/I193670377', 'https://openalex.org/I4210121526']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5040577138', 'display_name': 'M. Iqbal Choudhary', 'orcid': 'https://orcid.org/0000-0001-5356-3585'}, 'institutions': [{'id': 'https://openalex.org/I193670377', 'display_name': 'University of Karachi', 'ror': 'https://ror.org/05bbbc791', 'country_code': 'PK', 'type': 'education', 'lineage': ['https://openalex.org/I193670377']}, {'id': 'https://openalex.org/I4210121526', 'display_name': 'International Center for Chemical and Biological Sciences', 'ror': 'https://ror.org/024ghrf67', 'country_code': 'PK', 'type': 'facility', 'lineage': ['https://openalex.org/I4210121526']}], 'countries': ['PK'], 'is_corresponding': False, 'raw_author_name': 'M. Iqbal Choudhary', 'raw_affiliation_strings': ['a H.E.J. Research Institute of Chemistry , University of Karachi , Karachi-75270, Pakistan'], 'affiliations': [{'raw_affiliation_string': 'a H.E.J. Research Institute of Chemistry , University of Karachi , Karachi-75270, Pakistan', 'institution_ids': ['https://openalex.org/I193670377', 'https://openalex.org/I4210121526']}]}], 'countries_distinct_count': 1, 'institutions_distinct_count': 2, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 0.398, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 11, 'citation_normalized_percentile': {'value': 0.588536, 'is_in_top_1_percent': False, 'is_in_top_10_percent': False}, 'cited_by_percentile_year': {'min': 82, 'max': 83}, 'biblio': {'volume': '19', 'issue': '3', 'first_page': '267', 'last_page': '274'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T12530', 'display_name': 'Biological Activities of Diterpenoids from Medicinal Plants', 'score': 0.999, 'subfield': {'id': 'https://openalex.org/subfields/1312', 'display_name': 'Molecular Biology'}, 'field': {'id': 'https://openalex.org/fields/13', 'display_name': 'Biochemistry, Genetics and Molecular Biology'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, 'topics': [{'id': 'https://openalex.org/T12530', 'display_name': 'Biological Activities of Diterpenoids from Medicinal Plants', 'score': 0.999, 'subfield': {'id': 'https://openalex.org/subfields/1312', 'display_name': 'Molecular Biology'}, 'field': {'id': 'https://openalex.org/fields/13', 'display_name': 'Biochemistry, Genetics and Molecular Biology'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, {'id': 'https://openalex.org/T11385', 'display_name': 'Biological Activities of Triterpenoids and Saponins', 'score': 0.9876, 'subfield': {'id': 'https://openalex.org/subfields/1312', 'display_name': 'Molecular Biology'}, 'field': {'id': 'https://openalex.org/fields/13', 'display_name': 'Biochemistry, Genetics and Molecular Biology'}, 'domain': {'id': 'https://openalex.org/domains/1', 'display_name': 'Life Sciences'}}, {'id': 'https://openalex.org/T12247', 'display_name': 'Microbially Induced Carbonate Precipitation in Construction', 'score': 0.9872, 'subfield': {'id': 'https://openalex.org/subfields/2305', 'display_name': 'Environmental Engineering'}, 'field': {'id': 'https://openalex.org/fields/23', 'display_name': 'Environmental Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/euphorbia', 'display_name': 'Euphorbia', 'score': 0.46835154}, {'id': 'https://openalex.org/keywords/saponins', 'display_name': 'Saponins', 'score': 0.456969}, {'id': 'https://openalex.org/keywords/euphorbiaceae', 'display_name': 'Euphorbiaceae', 'score': 0.42724174}], 'concepts': [{'id': 'https://openalex.org/C2776710815', 'wikidata': 'https://www.wikidata.org/wiki/Q59447', 'display_name': 'Diterpene', 'level': 2, 'score': 0.8997058}, {'id': 'https://openalex.org/C71240020', 'wikidata': 'https://www.wikidata.org/wiki/Q186011', 'display_name': 'Stereochemistry', 'level': 1, 'score': 0.70246106}, {'id': 'https://openalex.org/C19549132', 'wikidata': 'https://www.wikidata.org/wiki/Q11141463', 'display_name': 'Two-dimensional nuclear magnetic resonance spectroscopy', 'level': 2, 'score': 0.67792773}, {'id': 'https://openalex.org/C185592680', 'wikidata': 'https://www.wikidata.org/wiki/Q2329', 'display_name': 'Chemistry', 'level': 0, 'score': 0.5612862}, {'id': 'https://openalex.org/C119394753', 'wikidata': 'https://www.wikidata.org/wiki/Q188245', 'display_name': 'Polyester', 'level': 2, 'score': 0.50396127}, {'id': 'https://openalex.org/C2779880300', 'wikidata': 'https://www.wikidata.org/wiki/Q146567', 'display_name': 'Euphorbia', 'level': 2, 'score': 0.46835154}, {'id': 'https://openalex.org/C2779047212', 'wikidata': 'https://www.wikidata.org/wiki/Q156584', 'display_name': 'Euphorbiaceae', 'level': 2, 'score': 0.42724174}, {'id': 'https://openalex.org/C178790620', 'wikidata': 'https://www.wikidata.org/wiki/Q11351', 'display_name': 'Organic chemistry', 'level': 1, 'score': 0.21564597}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.21391916}, {'id': 'https://openalex.org/C59822182', 'wikidata': 'https://www.wikidata.org/wiki/Q441', 'display_name': 'Botany', 'level': 1, 'score': 0.16624534}], 'mesh': [{'descriptor_ui': 'D004224', 'descriptor_name': 'Diterpenes', 'qualifier_ui': 'Q000737', 'qualifier_name': 'chemistry', 'is_major_topic': True}, {'descriptor_ui': 'D004224', 'descriptor_name': 'Diterpenes', 'qualifier_ui': 'Q000302', 'qualifier_name': 'isolation & purification', 'is_major_topic': True}, {'descriptor_ui': 'D028481', 'descriptor_name': 'Euphorbia', 'qualifier_ui': 'Q000737', 'qualifier_name': 'chemistry', 'is_major_topic': True}, {'descriptor_ui': 'D004224', 'descriptor_name': 'Diterpenes', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D004791', 'descriptor_name': 'Enzyme Inhibitors', 'qualifier_ui': 'Q000737', 'qualifier_name': 'chemistry', 'is_major_topic': False}, {'descriptor_ui': 'D004791', 'descriptor_name': 'Enzyme Inhibitors', 'qualifier_ui': 'Q000494', 'qualifier_name': 'pharmacology', 'is_major_topic': False}, {'descriptor_ui': 'D004791', 'descriptor_name': 'Enzyme Inhibitors', 'qualifier_ui': 'Q000302', 'qualifier_name': 'isolation & purification', 'is_major_topic': False}, {'descriptor_ui': 'D004791', 'descriptor_name': 'Enzyme Inhibitors', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D028481', 'descriptor_name': 'Euphorbia', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D014510', 'descriptor_name': 'Urease', 'qualifier_ui': 'Q000037', 'qualifier_name': 'antagonists & inhibitors', 'is_major_topic': False}, {'descriptor_ui': 'D014510', 'descriptor_name': 'Urease', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 2, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1080/14786410410001714687', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S205999849', 'display_name': 'Natural Product Research', 'issn_l': '1478-6419', 'issn': ['1478-6419', '1478-6427'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320547', 'host_organization_name': 'Taylor & Francis', 'host_organization_lineage': ['https://openalex.org/P4310320547'], 'host_organization_lineage_names': ['Taylor & Francis'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, {'is_oa': False, 'landing_page_url': 'https://pubmed.ncbi.nlm.nih.gov/15702640', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306525036', 'display_name': 'PubMed', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1299303238', 'host_organization_name': 'National Institutes of Health', 'host_organization_lineage': ['https://openalex.org/I1299303238'], 'host_organization_lineage_names': ['National Institutes of Health'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [{'id': 'https://metadata.un.org/sdg/15', 'display_name': 'Life on land', 'score': 0.49}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 17, 'referenced_works': ['https://openalex.org/W1912217738', 'https://openalex.org/W1973791934', 'https://openalex.org/W1993750722', 'https://openalex.org/W1994006510', 'https://openalex.org/W2004225048', 'https://openalex.org/W2022573918', 'https://openalex.org/W2028935621', 'https://openalex.org/W2046588215', 'https://openalex.org/W2055211287', 'https://openalex.org/W2082359260', 'https://openalex.org/W2083424399', 'https://openalex.org/W2085903464', 'https://openalex.org/W2116531314', 'https://openalex.org/W2160810152', 'https://openalex.org/W2950435251', 'https://openalex.org/W2952731892', 'https://openalex.org/W4239747192'], 'related_works': ['https://openalex.org/W4252057913', 'https://openalex.org/W3121775395', 'https://openalex.org/W2912579417', 'https://openalex.org/W2620736235', 'https://openalex.org/W2614063512', 'https://openalex.org/W2335900949', 'https://openalex.org/W2079260398', 'https://openalex.org/W2049333373', 'https://openalex.org/W1987776756', 'https://openalex.org/W1565768762'], 'abstract_inverted_index': {'Two': [0], 'new': [1], 'myrsinol-type': [2], 'diterpene': [3], 'polyesters': [4], '3,5,13,17-tetra-O-acetyl-7-O-benzoyl-15-hydroxymyrsinol': [5], '(1)': [6], 'and': [7, 40, 47, 52], '3,5,13,17-tetra-O-acetyl-7-O-butanoyl-13-hydroxymyrsinol': [8], '(2),': [9], 'with': [10], 'a': [11], 'tricyclic': [12], 'carbon': [13], 'skeleton': [14], 'have': [15], 'been': [16], 'isolated': [17, 29], 'from': [18], 'Euphorbia': [19], 'decipiens': [20], 'Boiss.': [21], '&': [22], 'Buhse.': [23], 'The': [24], 'structure': [25], 'elucidation': [26], 'of': [27], 'the': [28], 'compounds': [30], 'was': [31], 'based': [32], 'primarily': [33], 'on': [34], 'HREIMS,': [35], 'EIMS,': [36], 'IR,': [37], 'UV,': [38], 'ID-,': [39], '2D-NMR': [41], 'analyses,': [42], 'including': [43], 'COSY,': [44], 'HMQC,': [45], 'HMBC,': [46], 'NOESY': [48], 'correlations.': [49], 'Compounds': [50], '1': [51], '2': [53], 'also': [54], 'showed': [55], 'activity': [56], 'against': [57], 'urease': [58], 'enzyme.': [59]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2009232348', 'counts_by_year': [{'year': 2023, 'cited_by_count': 1}, {'year': 2018, 'cited_by_count': 1}, {'year': 2014, 'cited_by_count': 3}, {'year': 2012, 'cited_by_count': 1}], 'updated_date': '2024-08-19T20:24:40.006049', 'created_date': '2016-06-24'}