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【结 构 式】

【分子编号】63016

【品名】2,2,2-trifluoro-N-[(1S)-2-methyl-1-({(2R)-2-[(1S,2S,6R,8S)-2,9,9-trimethyl-3,5-dioxa-4-boratricyclo[6.1.1.0~2,6~]dec-4-yl]pyrrolidinyl}carbonyl)propyl]acetamide; 2,2,2-trifluoro-N-[(1S)-2-methyl-1-({(2R)-2-[(1S,2S,6R,8S)-2,9,9-trimethyl-3,5-dioxa-4-boratricyclo[6.1.1.0~2,6~]dec-4-yl]pyrrolidinyl}carbonyl)propyl]acetamide

【CA登记号】

【 分 子 式 】C21H32BF3N2O4

【 分 子 量 】444.3023696

【元素组成】C 56.77% H 7.26% B 2.43% F 12.83% N 6.31% O 14.4%

与该中间体有关的原料药合成路线共 1 条

合成路线1

该中间体在本合成路线中的序号:(IV)

In a related synthetic procedure, N-trifluoroacetyl-L-valine (I) is activated as the corresponding acid chloride (II) by treatment with the Vilsmeier reagent in cold EtOAc. Coupling of (II) with the pyrrolidineboronic ester (III) yields amide (IV). The trifluoroacetyl protecting group is then removed by alkaline hydrolysis to produce (V). Finally, deprotection of the boronic acid moiety of (V) with concomitant recycling of the (+)-pinanediol chiral auxiliary is achieved by transesterification with N-Boc-2-pyrrolidineboronic acid (VI) in the presence of methanesulfonic acid to furnish the pinanediol boronate (VII) along with the title compound

1 Gibson, F.S.; Singh, A.K.; Soumeillant, M.C.; Manchand, P.S.; Humora, M.; Kronenthal, D.R.; A practical synthesis of L-valyl-pyrrolidine-(2R)-boronic acid: Efficient recycling of the costly chiral auxiliary (+)-pinanediol. Org Process Res Dev 2002, 6, 6, 814.
中间体序号 中间体编号 品名 CAS号 分子式 供应商 用于合成
(I) 63014 (2S)-3-methyl-2-[(2,2,2-trifluoroacetyl)amino]butanoic acid; (2S)-3-methyl-2-[(2,2,2-trifluoroacetyl)amino]butanoic acid C7H10F3NO3 详情 详情
(II) 63015 (2S)-3-methyl-2-[(2,2,2-trifluoroacetyl)amino]butanoyl chloride; (2S)-3-methyl-2-[(2,2,2-trifluoroacetyl)amino]butanoyl chloride C7H9ClF3NO2 详情 详情
(III) 63007 (2R)-2-[(1S,2S,6R,8S)-2,9,9-trimethyl-3,5-dioxa-4-boratricyclo[6.1.1.0~2,6~]dec-4-yl]pyrrolidine 205116-75-2 C14H24BNO2 详情 详情
(IV) 63016 2,2,2-trifluoro-N-[(1S)-2-methyl-1-({(2R)-2-[(1S,2S,6R,8S)-2,9,9-trimethyl-3,5-dioxa-4-boratricyclo[6.1.1.0~2,6~]dec-4-yl]pyrrolidinyl}carbonyl)propyl]acetamide; 2,2,2-trifluoro-N-[(1S)-2-methyl-1-({(2R)-2-[(1S,2S,6R,8S)-2,9,9-trimethyl-3,5-dioxa-4-boratricyclo[6.1.1.0~2,6~]dec-4-yl]pyrrolidinyl}carbonyl)propyl]acetamide C21H32BF3N2O4 详情 详情
(V) 63012 (2S)-2-amino-3-methyl-1-{(2R)-2-[(1S,2S,6R,8S)-2,9,9-trimethyl-3,5-dioxa-4-boratricyclo[6.1.1.0~2,6~]dec-4-yl]pyrrolidinyl}-1-butanone C19H33BN2O3 详情 详情
(VI) 63002 1-{[(1,1-dimethylethyl)oxy]carbonyl}-2-pyrrolidinylboronic acid; 1-(tert-butoxycarbonyl)-2-pyrrolidinylboronic acid 149682-75-7 C9H18BNO4 详情 详情
(VII) 63006 tert-butyl (2R)-2-[(1S,2S,6R,8S)-2,9,9-trimethyl-3,5-dioxa-4-boratricyclo[6.1.1.0~2,6~]dec-4-yl]-1-pyrrolidinecarboxylate C19H32BNO4 详情 详情
Extended Information