Novel cationic conjugates of chlorin e6 with galactose fragments: synthesis and evaluation of photodynamic activity

Mal’shakova, Marina V.; Pylina, Yana I.; Belykh, Dmitry V.

doi:10.1007/s10593-023-03257-0

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2024

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“…Despite the intensive progress in the area of glycoporphyrinoids syntheses and different approaches, [20–31] there is still need to provide new, original and versatile strategies towards them. It is probably due to the fact that general methodologies are difficult to achieve because of a very distant nature of both subunits.…”

Section: Introductionmentioning

confidence: 99%

Suzuki‐Miyaura Reaction of Glycals with Base‐Labile Protecting Groups as a New Route to Glycoporphyrins

Godlewski,

Malinowski

2024

Adv Synth Catal

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Glycoporphyrins are considered promising photosensitisers of new generation. Herein, we describe the original, metal‐catalysed method towards porphyrin‐carbohydrate C‐C conjugates. The protocol of Suzuki‐Miyaura reaction has been developed and it was compatible with peracetylated 2‐iodoglycals. The utility of the reaction was exemplified on 15 different (C‐2)‐arylated sugar derivatives. Then it was applied on more challenging starting materials, namely, porphyrin boronates in which we addressed the issues of difficult transmetalation step usually observed on palladium‐catalysed processes of porphyrin derivatives. The efficiency of the protocol was finally applied to synthesize the library of glycoporphyrins proving the versatile character of this strategy. Keywords: Suzuki‐Miyaura reaction, glycoporphyrins, photosensitisers, carbohydrates, porphyrins, palladium catalysis, glycal

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Section: Introductionmentioning

confidence: 99%