The Article related to polycyclic spiro piperidine preparation m1 m4 agonist, alzheimer disease schizophrenia treatment polycyclic spiro piperidine, Heterocyclic Compounds (More Than One Hetero Atom): Oxazines (Including Morpholine) and other aspects.HPLC of Formula: 883984-95-0
On April 5, 2012, Inoue, Yasunao; Konishi, Yasuko published a patent.HPLC of Formula: 883984-95-0 The title of the patent was Preparation of polycyclic spiro-piperidine derivatives as M1 and M4 agonists. And the patent contained the following:
Disclosed are compounds I [R1 = (un)substituted alkyl; R2-R4 = H, halo, (un)substituted alkyl, etc.; R5 = H, (un)substituted alkyl, (un)substituted cycloalkyl, etc.; R6, R7 = H or (un)substituted alkyl; R6 and R7, together with the carbon atom to which they are attached, may combine to form C:O group with a proviso that when Y is oxygen, R6 and R7, together with the carbon atom to which they are attached, may combine to form C:O group; m, n = 1-3; A = single bond or CH2; X = NH, oxygen or sulfur atom; Y = CR8R9 or oxygen atom; R8, R9 = H or alkyl; or pharmaceutically acceptable salts thereof], useful for the treatment of Alzheimer disease and schizophrenia. For example, compound II was prepared via reaction of N-tert-butoxycarbonylpiperidone with tri-Et phosphonoacetate followed by treatment with DBU, amidation with 2-amino-3-bromopyridine, Pd(OAc)2-catalyzed cyclization, dealkoxycarbonylation using HCl, and reaction with Et 4-formylpiperidine-1-carboxylate/NaBH(OAc)3. Compound II exhibited agonistic activities of 89%, 66%, 21%, and 138% (at 1 μM) for M1, M2, M3, and M4, resp. The experimental process involved the reaction of Benzyl 7′-chloro-2′-oxo-1′,2′-dihydrospiro[piperidine-4,4′-pyrido[2,3-d][1,3]oxazine]-1-carboxylate(cas: 883984-95-0).HPLC of Formula: 883984-95-0
The Article related to polycyclic spiro piperidine preparation m1 m4 agonist, alzheimer disease schizophrenia treatment polycyclic spiro piperidine, Heterocyclic Compounds (More Than One Hetero Atom): Oxazines (Including Morpholine) and other aspects.HPLC of Formula: 883984-95-0
Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem