{"id":"https://openalex.org/W1990625697","doi":"https://doi.org/10.1071/c98015","title":"Modifications of Rings B and C of Podocarpic Acid: Towards the Synthesis of Quassinoids Richard","display_name":"Modifications of Rings B and C of Podocarpic Acid: Towards the Synthesis of Quassinoids Richard","publication_year":1998,"publication_date":"1998-12-24","ids":{"openalex":"https://openalex.org/W1990625697","doi":"https://doi.org/10.1071/c98015","mag":"1990625697"},"language":"en","primary_location":{"id":"doi:10.1071/c98015","doi":"https://doi.org/10.1071/c98015","is_oa":false,"landing_page_url":"https://doi.org/10.1071/c98015","pdf_url":null,"source":{"id":"https://openalex.org/S91238560","display_name":"Australian Journal of Chemistry","issn_l":"0004-9425","issn":["0004-9425","1445-0038"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","jufo-1","norway-1","poland-40","russia-white-list-3"],"host_organization":"https://openalex.org/P4310320302","host_organization_name":"CSIRO Publishing","host_organization_lineage":["https://openalex.org/P4310320302"],"host_organization_lineage_names":["CSIRO Publishing"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Australian Journal of Chemistry","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5008048338","display_name":"C. Cambie","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"C. Cambie","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5023901201","display_name":"William Alexander Denny","orcid":"https://orcid.org/0000-0001-7997-1843","observed_orcids":["https://orcid.org/0000-0001-7997-1843"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"William A. Denny","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5067234230","display_name":"Michael P. Hay","orcid":"https://orcid.org/0000-0002-7087-9087","observed_orcids":["https://orcid.org/0000-0002-7087-9087"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Michael P. Hay","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111383249","display_name":"Lorna H. Mitchell","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Lorna H. Mitchell","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5106037503","display_name":"Peter S. Rutledge","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Peter S. Rutledge","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5111615454","display_name":"Paul D. Woodgate","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Paul D. Woodgate","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.5773,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.58393383,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":"52","issue":"1","first_page":"7","last_page":"18"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13221","display_name":"Biological Activity of Diterpenoids and Biflavonoids","score":0.7705000042915344,"subfield":{"id":"https://openalex.org/subfields/1605","display_name":"Organic Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T13221","display_name":"Biological Activity of Diterpenoids and Biflavonoids","score":0.7705000042915344,"subfield":{"id":"https://openalex.org/subfields/1605","display_name":"Organic Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13649","display_name":"Advanced Synthetic Organic Chemistry","score":0.05290000140666962,"subfield":{"id":"https://openalex.org/subfields/1605","display_name":"Organic Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12685","display_name":"Phytochemical compounds biological activities","score":0.04639999940991402,"subfield":{"id":"https://openalex.org/subfields/3002","display_name":"Drug Discovery"},"field":{"id":"https://openalex.org/fields/30","display_name":"Pharmacology, Toxicology and Pharmaceutics"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/podocarpic-acid","display_name":"podocarpic acid","score":0.9800000190734863},{"id":"https://openalex.org/keywords/quassinoids","display_name":"quassinoids","score":0.9520000219345093},{"id":"https://openalex.org/keywords/birch-reduction","display_name":"Birch reduction","score":0.8399999737739563},{"id":"https://openalex.org/keywords/alkylating-agents","display_name":"alkylating agents","score":0.5450000166893005},{"id":"https://openalex.org/keywords/reductive-silylation","display_name":"reductive silylation","score":0.9710000157356262},{"id":"https://openalex.org/keywords/ethylene-acetals","display_name":"ethylene acetals","score":0.6349999904632568},{"id":"https://openalex.org/keywords/reimer-tiemann-reaction","display_name":"Reimer-Tiemann reaction","score":0.8679999709129333},{"id":"https://openalex.org/keywords/natural-product-synthesis","display_name":"natural product synthesis","score":0.4429999887943268}],"concepts":[{"id":"https://openalex.org/C93237805","wikidata":"https://www.wikidata.org/wiki/Q5375227","display_name":"Enantiopure drug","level":4,"score":0.890547513961792},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.8438137769699097},{"id":"https://openalex.org/C2777738585","wikidata":"https://www.wikidata.org/wiki/Q170744","display_name":"Ketone","level":2,"score":0.7701242566108704},{"id":"https://openalex.org/C2777731525","wikidata":"https://www.wikidata.org/wiki/Q421103","display_name":"Acetal","level":2,"score":0.6060770750045776},{"id":"https://openalex.org/C5304478","wikidata":"https://www.wikidata.org/wiki/Q502457","display_name":"Silylation","level":3,"score":0.5733562707901001},{"id":"https://openalex.org/C191503008","wikidata":"https://www.wikidata.org/wiki/Q16007026","display_name":"Biocatalysis","level":4,"score":0.5701663494110107},{"id":"https://openalex.org/C164361826","wikidata":"https://www.wikidata.org/wiki/Q177604","display_name":"Alkylation","level":3,"score":0.535830020904541},{"id":"https://openalex.org/C111771559","wikidata":"https://www.wikidata.org/wiki/Q66295","display_name":"Derivative (finance)","level":2,"score":0.4616609215736389},{"id":"https://openalex.org/C2780378348","wikidata":"https://www.wikidata.org/wiki/Q25351438","display_name":"Ring (chemistry)","level":2,"score":0.4403359889984131},{"id":"https://openalex.org/C2777380813","wikidata":"https://www.wikidata.org/wiki/Q4674069","display_name":"Acid catalysis","level":3,"score":0.4323377013206482},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.4209131598472595},{"id":"https://openalex.org/C71240020","wikidata":"https://www.wikidata.org/wiki/Q186011","display_name":"Stereochemistry","level":1,"score":0.35687798261642456},{"id":"https://openalex.org/C161790260","wikidata":"https://www.wikidata.org/wiki/Q82264","display_name":"Catalysis","level":2,"score":0.271831214427948},{"id":"https://openalex.org/C65024703","wikidata":"https://www.wikidata.org/wiki/Q373406","display_name":"Reaction mechanism","level":3,"score":0.1863158643245697},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C106159729","wikidata":"https://www.wikidata.org/wiki/Q2294553","display_name":"Financial economics","level":1,"score":0.0},{"id":"https://openalex.org/C146686406","wikidata":"https://www.wikidata.org/wiki/Q898628","display_name":"Enantioselective synthesis","level":3,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1071/c98015","doi":"https://doi.org/10.1071/c98015","is_oa":false,"landing_page_url":"https://doi.org/10.1071/c98015","pdf_url":null,"source":{"id":"https://openalex.org/S91238560","display_name":"Australian Journal of Chemistry","issn_l":"0004-9425","issn":["0004-9425","1445-0038"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","jufo-1","norway-1","poland-40","russia-white-list-3"],"host_organization":"https://openalex.org/P4310320302","host_organization_name":"CSIRO Publishing","host_organization_lineage":["https://openalex.org/P4310320302"],"host_organization_lineage_names":["CSIRO Publishing"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Australian Journal of Chemistry","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W1983255190","https://openalex.org/W1176087038","https://openalex.org/W2504465321","https://openalex.org/W2949799647","https://openalex.org/W2011363756","https://openalex.org/W2037267226","https://openalex.org/W4251939292","https://openalex.org/W2952602888","https://openalex.org/W2314480616","https://openalex.org/W2324884212"],"abstract_inverted_index":{"Attempts":[0],"to":[1],"alkylate":[2],"products":[3,25],"from":[4,51],"Birch":[5],"reductions":[6],"of":[7,9,17,20,26,34,39,69],"derivatives":[8],"podocarpic":[10,70],"acid":[11,71],"are":[12],"reported.":[13],"Attempted":[14],"reductive":[15],"silylation":[16],"ring":[18],"C":[19],"methyl":[21],"12-methoxypodocarpa-8,11,13-trien-19-oate":[22],"(5)":[23],"gives":[24],"C4":[27],"ester":[28],"reduction":[29],"only.":[30],"The":[31,78],"enantiopure":[32],"form":[33],"the":[35,52,59],"bis(ethylene":[36],"acetal)":[37],"(15)":[38],"19-norpodocarp-8-ene-3,12-dione,":[40],"a":[41],"potentially":[42],"useful":[43],"intermediate":[44],"for":[45,93],"quassinoid":[46],"synthesis,":[47],"has":[48,61,82,91],"been":[49,62,83],"prepared":[50],"ketone":[53,80,88],"(34).":[54],"Functionality":[55],"at":[56,96],"C8":[57],"on":[58],"\u00df-face":[60],"successfully":[63],"introduced":[64],"by":[65],"abnormal":[66],"Reimer\u2013Tiemann":[67],"reactions":[68],"(2)":[72],"and":[73],"its":[74],"13-methyl":[75],"derivative":[76],"(10).":[77],"saturated":[79],"(48)":[81],"converted":[84],"into":[85],"an":[86],"a,\u00df-unsaturated":[87],"(18)":[89],"which":[90],"potential":[92],"introducing":[94],"functionality":[95],"C14.":[97]},"counts_by_year":[{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":1}],"updated_date":"2026-09-22T06:50:58.402377","created_date":"2016-06-24T00:00:00"}