2-chloro-1-methyl-2-oxoethyl acetate -Drug Synthesis Database

【结构式】

【分子编号】36121

【品名】2-chloro-1-methyl-2-oxoethyl acetate

【CA登记号】36394-75-9

【分子式】C₅H₇ClO₃

【分子量】150.56148

【元素组成】C 39.89% H 4.69% Cl 23.55% O 31.88%

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：(XX)

The lactyl dipeptide (X) is obtained as follows: The condensation of tert-butoxycarbonylalanine (XV) with glutamic acid (XVI) gives tert-butoxycarbonylalanylglutamic acid (XVII), which is esterified partially with benzyl bromide (F) yielding the mono ester (XVIII). Elimination of the tert-butoxycarbonyl group of (XVIII) with trifluoroacetic acid affords alanylglutamic acid monobenzyl ester (XIX), which is finally condensed with 2-acetoxypropionyl chloride (XX) to afford (X).

参考文献中间体

合成目标

【1】 Hemmi, K.; Nakaguchi, O.; Hashimoto, M.; Taleno, H.; Kitaura, Y.; Okada, S.; An efficient method for selective amino acid protection of meso-2,2'-diaminocarboxylic acid: An improved synthesis of FK-156. Tetrahedron Lett 1982, 23, 6, 693-696.
【2】 Imanaka, H.; Nakahaa, K.; Gotoh, T.; Aoki, H.; Iwami, M.; Studies on a new immunoactive peptide, FK-156. I. Taxonomy of the producing strains. J Antibiot 1982, 35, 10, 1280-85.
【3】 Gotoh, T.; Imoraka, H.; Nakahara, K.; Tanaka, H.; Uchida, I.; Kawai, Y.; Studies on a new immunoactive peptide, FK-156. III. Structure elucidation. J Antibiot 1982, 35, 10, 1293-99.
【4】 Okada, S.; Hemmi, K.; Takano, H.; Hashimoto, M.; Nakaguchi, O.; Kitaura, Y.; Aratani, M.; Miyazaki, Y.; Studies of a new immunoactive peptide, FK-156. IV. Synthesis od FK-156 and its geometric isomer. J Antibiot 1982, 35, 10, 1300-11.
【5】 Okahara, M.; Nakahara, K.; Gotoh, T.; Hashimoto, M..; Kino, T.; Aoki, H.; Imanaka, H.; Kohsaka, M.; Nishiura, T.; Kuroda, Y.; Studies on a new immunoactive peptide, FK-156. II. Fermentation, extraction and chemical and biological charaterization. J Antibiot 1982, 35, 10, 1286-92.
【6】 Kitaura, Y.; Nakaguchi, O.; Hemmi, K.; Aratani, M.; Takeno, H.; Okada, S.; Tanaka, H.; Hashimoto, M. (Fujisawa Pharmaceutical Co., Ltd.); New peptides, processes for their preparation and pharmaceutical compsns. containing them. EP 0027260 .
【7】 Kitaura, Y.; Nakaguchi, O.; Hemmi, K. (Fujisawa Pharmaceutical Co., Ltd.); New lactyl tetrapeptide, processes for preparation thereof and pharmaceutical compsns. containing it. EP 0011283 .
【8】 Arya, V.P.; Blancafort, P.; Castaner, J.; Serradell, M.N.; FK-156. Drugs Fut 1983, 8, 8, 667.
【9】 Hemmi, K.; Takeno, H.; Okada, S.; Nakaguchi, O.; Kitaura, Y.; Hashimoto, M.; Total synthesis of FK-156 isolated from a Streptomyces as an immunostimulating peptide: Application of a novel copper chelate amino protection. J Am Chem Soc 1981, 103, 7026.

中间体序号	中间体编号	品名	CAS号	分子式	供应商	用于合成
(F)	12912	1-(Bromomethyl)benzene; Alpha-bromotoluene	100-39-0	C₇H₇Br	详情	详情
(X)	36102	(4R)-4-[((2S)-2-[[(2R)-2-(acetoxy)propanoyl]amino]propanoyl)amino]-5-(benzyloxy)-5-oxopentanoic acid		C₂₀H₂₆N₂O₈	详情	详情
(XV)	15859	Boc-D-Alanine; (2R)-2-[(tert-butoxycarbonyl)amino]propionic acid	7764-95-6	C₈H₁₅NO₄	详情	详情
(XVI)	12005	L-2-Amino propane dicarboxylic acid; (-)-2-Aminoglutaric acid; L-2-Aminopentanoic acid; L-Glutamic acid	56-86-0	C₅H₉NO₄	详情	详情
(XVII)	36118	(2R)-2-([(2S)-2-[(tert-butoxycarbonyl)amino]propanoyl]amino)pentanedioic acid		C₁₃H₂₂N₂O₇	详情	详情
(XVIII)	36119	(4R)-5-(benzyloxy)-4-([(2S)-2-[(tert-butoxycarbonyl)amino]propanoyl]amino)-5-oxopentanoic acid		C₂₀H₂₈N₂O₇	详情	详情
(XIX)	36120	(4R)-4-[[(2S)-2-aminopropanoyl]amino]-5-(benzyloxy)-5-oxopentanoic acid		C₁₅H₂₀N₂O₅	详情	详情
(XX)	36121	2-chloro-1-methyl-2-oxoethyl acetate	36394-75-9	C₅H₇ClO₃	详情	详情

Extended Information