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(19)

RU

(11)

2 519 256

(13)

C2

(51)

IPC

C07D249/20(2006-01-01)

A61F2/16(2006-01-01)

B29D11/02(2006-01-01)

G02B1/04(2006-01-01)

(21) (22)

Application

2012103836/04, 2010-07-02

(24)

Start date

2010-07-02

(22)

Actual filing date

2010-07-02

(45)

Published

2014-06-10

(72)

Inventor

Laredo Uolter R.

(73)

Holder

Novartis Ag

ABSORBERS OF UV/VISIBLE LIGHT FOR MATERIALS OF OPHTHALMOLOGICAL LENSES Russian patent published in 2014 - IPC C07D249/20 A61F2/16 B29D11/02 G02B1/04 

Abstract RU 2519256 C2

FIELD: chemistry.

SUBSTANCE: described are novel derivatives of benzotriazole of general formula , where X is C3-C4 alkenylene, C3-C4 alkylene, CH2CH2CH2SCH2CH2 or CH2CH2CH2SCH2CH2CH2; Y is hydrogen, if X is C3-C4 alkenylene, or Y is -O-C(=O)-C(R1)=CH2, if X is C3-C4 alkylene, CH2CH2CH2SCH2CH2 or CH2CH2CH2SCH2CH2CH2; R1is CH3 or CH2CH3; R2 is C1-C4 alkyl, and R3is F, Cl, Br, I or CF3.

EFFECT: compounds are absorbers of UV/visible light and can be applied in production of materials for ophthalmological lenses.

5 cl, 3 dwg, 5 tbl, 6 ex

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RU 2 519 256 C2

Authors

Laredo Uolter R.

Dates

2014-06-10—Published

2010-07-02—Filed

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