scheme26
Scheme 26. Organocatalyzed Mannich/cyclization reaction of isothiocyanato butyrolactone 48 with N-tosylimines 52. This figure is used with permission from Wiley-VCH Verlag[80].
Scheme 26. Organocatalyzed Mannich/cyclization reaction of isothiocyanato butyrolactone 48 with N-tosylimines 52. This figure is used with permission from Wiley-VCH Verlag[80].
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