Woudenberg RH, Lie TS, Maat L. Reactions of thebaine and 6-demethoxythebaine anions with carbonyl compounds; novel Diels-Alder adducts from 5β-substituted thebaines (chemistry of opium alkaloids, Part XXXIX). ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19931121008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]

Beyerman HC, van Berkel J, Lie TS, Maat L, Wessels JCM, Bosman HH, Buurman E, Bijsterveld EJM, Sinnige HJM. Synthesis of racemic and optically active codeine and morphine via the N-formylnordihydrothebainones: (Chemistry of opium alkaloids, part X). ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19780970504] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]

Beyerman HC, Maat L, de Rijke D, Visser JP. The absolute configuration of β-hydroxyvaline. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19670861004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]

Beyerman HC, van den Bosch S, Breuker JH, Maat L. Absolute configuration and optical rotatory dispersion of 2-ethylpiperidine and some of its derivatives in connection with a sector rule. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19710900709] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]

Beyerman H, van Bommel L, Maat L, Olieman C. Conversion of (-)-N-formylnordihydrothebainone into (-)-dihydrotbebainone and vice versa: (Chemistry of opium alkaloids, Part VII). ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19760951208] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]

Dijkstra A, Billiet HA, van Doninck AH, van Velthuyzen H, Maat L, Beyerman HC. A solid-phase Edman sequence determination. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19670860110] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]

Beyerman HC, Maat L, Noordam A, van Zon A. Synthesis of L-Nπ-methylhistidine derivatives (Imidazole chemistry, Part III). ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19770960903] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]

de Zoete MC, van Rantwijk F, Maat L, Sheldon RA. Selective oxidation of penicillin G with hydrogen peroxide and with enzymatically generated peroxyoctanoic acid. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19931120706] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]

Olieman C, Maat L, Beyerman HC. Oxidation of (-)-2-bromo-3-hydroxy-N-methyl-6-oxomorphinan with Fremy's salt. An unprecedented 2,4-shift of the bromo substituent. (Chemistry of opium alkaloids, Part XIII). ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19800990506] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]

Beyerman HC, Lie TS, Maat L, Noordam-Weissdorf M. Synthesis of peptide-morphinans based on Diels-Alder adducts of thebaine with enkephalin moieties (chemistry of opium alkaloids, Part XVI). ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19821011207] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]

Beyerman H, Buurman E, Maat L, Olieman C. Synthesis of racemic and of (+)- and (-)-1-methyldihydrothebainone. (Chemistry of opium alkaloids, Part IV). ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19760950711] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]

Beyerman HC, Maat L, Vlsser JP, Craig JC, Chan RPK, Roy SK. Optical rotatory dispersion and absolute configuration XIII sedridine and allosedridine. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19690880815] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]

Woudenberg RH, Meuzelaar GJ, Maat L. Synthesis of 7-substituted 6-demethoxythebaines and Diels-Alder reaction of 7-methoxy-5β-methyl-6-demethoxythebaine (chemistry of opium alkaloids, part XLI). ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19931121104] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]

Meuzelaar GJ, Woudenberg RH, Sinnema A, Maat L. Synthesis of neopine and its 5β- and 7-substituted derivatives (chemistry of opium alkaloids, part XL≠). ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19931121103] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]

Beyerman HC, Bordes BSL, Maat L, Warnaar FM. Synthesis, optical rotatory dispersion and absolute configuration of (+)-N-methylallosedridine [(+)-(2R)-2-{(2S)-2-hydroxypropyl}-1-methylpiperidine] from sedum sarmentosum bunge and its isomers. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19720911208] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]

Beyerman HC, Crabbendam PR, Lie TS, Maat L. Convenient conversions of codeine into 6-demethoxythebaine via bond rearrangement (Chemistry of Opium Alkaloids, Part XVIII). ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19841030403] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]

Noordam A, Maat L, Beyerman HC. A convenient synthesis of L-Nτ-methylhistidine and L-Nτ-ethylhistidine (Imidazole chemistry, Part IV). ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19780971105] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]

Woudenberg RH, Piet DP, Sinnema A, Lie TS, Maat L. Synthesis of 5β-methyl-6-demethoxythebaine and its Diels-Alder reaction to 6α,14α-ethenoisomorphinans and 6β,14β-ethenomorphinans (Chemistry of Opium Alkaloids, Part XXXV. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19911101004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]

Crabbendam PR, Lie TS, Linders JTM, Maat L. Synthesis of 6, 14-ethenoisomorphinans and 6, 14-ethenomorphinans based on Diels-Alder adducts of 6-demethoxythebaine and 6-demethoxy-β-dihydrothebaine; pharmacology of the isomorphinans (Chemistry of Opium Alkaloids, Part XIX). ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19841031005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]

Maat L, van Weelderen AWB, Beyerman HC. Dehydrogenation of the linear isomer of dihydroflindersine (khaplofoline) to the alkaloid flindersine. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19730921217] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]

Olieman C, Maat L, Beyerman HC. Analysis of cocaine, pseudococaine, allococaine and allopseudococaine by ion-pair reverse-phase high-performance liquid chromatography. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19790981002] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]

Beyerman H, van Weelderen AWB, Maat L, Noordam A. Synthesis and chiroptical properties of (-)-(S )-2-chloro-3-(5-imidazolyl)propanol (Imidazole chemistry, Part II). ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19770960705] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]

Beyerman HC, Maat L. Synthesis and absolute configuration of Tanret's (-)-pelletierine. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19630821012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]

Beyerman HC, Maat L, Hegarty MP. The absolute configuration of mimosine. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19640831011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]

Beyerman HC, Lie TS, Maat L, Bosman HH, Buurman E, Bijsterveld EJM, Sinnige HJM. A convenient synthesis of codeine and morphine. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19760950107] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]