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• 50541-93-0 4-amino-1-benzylpiperidine 
• 77-77-0 Divinyl sulfone 

Relevant academic research and scientific papers

PURINE DERIVATIVES USEFUL AS PI3 KINASE INHIBITORS

This invention provides a compound which is a purine of formula (Ia) or (Ib): and the pharmaceutically acceptable salts thereof that are inhibitors of PI3K and a selective for the p110δ isoform, which is a class Ia PI3 kinase, over other class Ia PI3 kinases and over class Ib kinases. The compounds may be used to treat diseases and disorders arisi from abnormal cell growth, function or behaviour associated with PI3 kinase such as cance immune disorders, cardiovascular disease, viral infection, inflammation, metabolism/endocrine function disorders and neurological disorders.

Concerning the Reactivity of Unsubstituted and Alkyl Substituted Thiomorpholines, 5. On the Joint Action of Elementary Sulfur and Gaseous Ammonia on Ketones, 95

The syntheses of 4-amino-thiomorpholine-1,1-dioxide (12) and 4-hydroxy-thiomorpholine-1,1-dioxide (11) from 1,4-thioxane-1,1-dioxide (1) by pressureless reaction of 1 with hydrazine hydrate and hydroxylamine, resp. is described.In analogy various other N-substituted thiomorpholine-1,1-dioxides are obtained with prim. amines (2-8) and diamines (9,10). 12 condensates with aldehydes (14-24) and ketones (25-29); reaction of 12 with 1 gives N,N'-dithiomorpholine-1,1-dioxide (13).Acylation of 12 with monochlorides (30-35), dichlorides of dicarboxylic acids (36-40) and carbo xylic acid anhydrides (41-43) proceeds smoothly.Compounds 38-43 are cyclic imides.Isocyanates give with 12 the expected compounds 45-48. 12 reacts with chlorinated 1,3,5-triazines to compounds which can be purified only with difficulty (49-51).Quaternization of the N-substituted thiomorpholine-1,1-dioxides with benzylbromide (52,53) and methyliodide (54,55) is possible.Ethylenbromide reacts with 9 to give the bis quaternization product 56.Further reactions of thiomorpholine-1,1-dioxide (57) with sulfuryl chloride (58), bromo cyanide (59), allylic chloride (60), chloro acetonitrile (61) and trityl chloride (62) are described. 11 reacts with carboxylic acid chlorides (63-65) and iso-cyanates (66-70) to yield the expected compounds.Propylene oxide gives with 12 the addition product 71; sulfur dioxide is added to 11 to thiomorpholine-1,1-dioxide sulfonic acid (72). - Keywords: 4-Aminothiomorpholine-1,1-dioxide; 4-Hydroxy-thiomorpholine-1,1-dioxide; Reactivity; Synthesis.