HCID 59854220, compound → HCID 59854175, compound

Participants

Reaction Steps

For example, methyl 3-amino-2-diphenylmethoxybenzoate A27.12 is reacted with 5-acetyl-4-bromothiazole A27.13 (WO 9317681) to afford after cyclization of the initial displacement product, 5-benzhydryloxy-9-methyl-thiazolo[4,5-b]quinoline-6-carboxylic acid methyl ester A27.14. Reaction with N-bromosuccinimide in hexachloroethane then yields the bromomethyl analog A27.15, and this material is reacted with a trialkyl phosphite in an Arbuzov reaction to give the phosphonate A27.16. The product is then reacted with 3,5-dichlorobenzyl methylamine A27.17 and trimethyl aluminum to afford after deprotection the phosphonate A27.18.

Provenance & Evidence