+++Tetrahedron (3)

[Yah]

Прошу скопировать 3 статьи.
Заранее благодарю!

1. Tetrahedron. 1988. 44, 2149-2165.
Kawabata T., Kimura Y., Ito Y., Terashima S., Sasaki A., Sunagawa M.
A novel and efficient synthesis of the key intermediate of 1b-methylcarbapenem antibiotics employing [2+2]-cycloaddition reaction of diketene with a chiral imine.

DOI:

http://dx.doi.org/10.1016/S0040-4020(01)81722-1

2. Tetrahedron. 1991. 47: 2801-2820.
Ito Y., Sasaki A., Tamoto K., Sunagawa M., Terashima S.
Highly stereocontrolled synthesis of the 1b-methylcarbapenem key intermediate by the reformatsky reaction of 3-(2-bromopropionyl)-2-oxazolidone derivatives with a 4-acetoxy-2-azetidinone.

DOI:

http://dx.doi.org/10.1016/S0040-4020(01)87086-1

3. Tetrahedron Lett. 1986. 27: 6241-6244.
Kawabata T., Kimura Y., Ito Y., Terashima S., Sasaki A., Sunagawa M.
A novel and efficient synthesis of the key intermediate of 1b-methylcarbapenem antibiotics from ()-methyl 3-hydroxy-2-methylpropionate.

DOI:

http://dx.doi.org/10.1016/S0040-4039(00)85442-8

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Большое спасибо!