The protection of Ethyl isonipecotate [1126-09-6] (1) with Boc anhydride gives ethyl n-boc-4-piperidinecarboxylate [142851-03-4] (2). Ester-amide interchange with N-Methoxymethylamine HCl: [6638-79-5] in the presence of CDI coupling agent gives 1-Boc-4-[methoxy(methyl)carbamoyl]piperidine [139290-70-3] (3). Weinreb ketone synthesis occurs upon benzoylation with 1,2-Dimethoxybenzene [91-16-7] (4) to give 1-Boc-4-(3,4-dimethoxybenzoyl)piperidine, [2322526-86-1] CID:139510111 (5). Acid removal of the urethane protecting group gives (3,4-dimethoxyphenyl)-piperidin-4-ylmethanone [742665-98-1] (6). The reduction of the ketone with sodium borohydride leads to (3,4-Dimethoxyphenyl)-piperidin-4-ylmethanol, CID:24261124 (7). Resolution of the alcohol gives (8). Sn2 alkylation of the secondary nitrogen with 4-Fluorophenethyl bromide [332-42-3] (9) completed the synthesis of Volinanserin (10).
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^Offord SJ, Wong DF, Nyberg S (August 1999). "The role of positron emission tomography in the drug development of M100907, a putative antipsychotic with a novel mechanism of action". Journal of Clinical Pharmacology. 39 (S1): 17S–24S. doi:10.1002/j.1552-4604.1999.tb05933.x. PMID10434243. S2CID21311671.
^Charney DS, Nestler PS, Sklar P, Buxbaum JD (July 2013). Neurobiology of Mental Illness. OUP USA. p. 767. ISBN 9780199934959.
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^Albert A. Carr, John M. Kane, & David A. Hay, WO1991018602 (to Aventis Pharmaceuticals Inc).
^Huang, Yiyun; Mahmood, Khalid; Mathis, Chester A. (1999). "An efficient synthesis of the precursors of [11C]MDL 100907 labeled in two specific positions". Journal of Labelled Compounds and Radiopharmaceuticals. 42 (10): 949–957. doi:10.1002/(SICI)1099-1344(199910)42:10<949::AID-JLCR253>3.0.CO;2-S.
^Thomas Paul Blackburn, WO1998004289 (to SmithKline Beecham Ltd).
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction