{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,10]],"date-time":"2026-02-10T17:16:06Z","timestamp":1770743766780,"version":"3.49.0"},"reference-count":6,"publisher":"Elsevier BV","issue":"15","license":[{"start":{"date-parts":[[1997,4,1]],"date-time":"1997-04-01T00:00:00Z","timestamp":859852800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Tetrahedron Letters"],"published-print":{"date-parts":[[1997,4]]},"DOI":"10.1016\/s0040-4039(97)00464-4","type":"journal-article","created":{"date-parts":[[2003,5,12]],"date-time":"2003-05-12T23:40:06Z","timestamp":1052782806000},"page":"2757-2758","source":"Crossref","is-referenced-by-count":18,"title":["Reaction of \u03b2-amino-meso-tetraphenylporphyrin with \u03b1,\u03b2-unsaturated carbonyl compounds: An approach to fused pyridinoporphyrins"],"prefix":"10.1016","volume":"38","author":[{"given":"Cristina M.A.","family":"Alonso","sequence":"first","affiliation":[]},{"given":"Maria G.P.M.S.","family":"Neves","sequence":"additional","affiliation":[]},{"given":"Artur M.S.","family":"Silva","sequence":"additional","affiliation":[]},{"given":"Jos\u00e9A.S.","family":"Cavaleiro","sequence":"additional","affiliation":[]},{"given":"Hermann K.","family":"Hombrecher","sequence":"additional","affiliation":[]}],"member":"78","reference":[{"key":"10.1016\/S0040-4039(97)00464-4_BIB1","doi-asserted-by":"crossref","first-page":"2461","DOI":"10.1039\/p19960002461","author":"Bonnett","year":"1996","journal-title":"J. Chem. Soc., Perkin Trans. 1"},{"key":"10.1016\/S0040-4039(97)00464-4_BIB2","doi-asserted-by":"crossref","first-page":"417","DOI":"10.1039\/p19960000417","author":"Ono","year":"1996","journal-title":"J. Chem. Soc., Perkin Trans. 1"},{"key":"10.1016\/S0040-4039(97)00464-4_BIB3","doi-asserted-by":"crossref","first-page":"1047","DOI":"10.1039\/C39840001047","author":"Morgan","year":"1984","journal-title":"J. Chem. Soc., Chem. Commun."},{"key":"10.1016\/S0040-4039(97)00464-4_BIB4","doi-asserted-by":"crossref","first-page":"1921","DOI":"10.1039\/C39950001921","author":"Crossley","year":"1995","journal-title":"J. Chem. Soc., Chem. Commun."},{"key":"10.1016\/S0040-4039(97)00464-4_BIB5","doi-asserted-by":"crossref","first-page":"2675","DOI":"10.1039\/P19960002675","author":"Crossley","year":"1996","journal-title":"J. Chem. Soc., Perkin Trans. 1"},{"key":"10.1016\/S0040-4039(97)00464-4_BIB8","first-page":"314","volume":"57","author":"Bax","year":"1984","journal-title":"J. Magn. Reson."}],"container-title":["Tetrahedron Letters"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0040403997004644?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0040403997004644?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2019,4,16]],"date-time":"2019-04-16T14:21:11Z","timestamp":1555424471000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0040403997004644"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1997,4]]},"references-count":6,"journal-issue":{"issue":"15","published-print":{"date-parts":[[1997,4]]}},"alternative-id":["S0040403997004644"],"URL":"https:\/\/doi.org\/10.1016\/s0040-4039(97)00464-4","relation":{},"ISSN":["0040-4039"],"issn-type":[{"value":"0040-4039","type":"print"}],"subject":[],"published":{"date-parts":[[1997,4]]}}}