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166383-69-3

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166383-69-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 166383-69-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,6,3,8 and 3 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 166383-69:
(8*1)+(7*6)+(6*6)+(5*3)+(4*8)+(3*3)+(2*6)+(1*9)=163
163 % 10 = 3
So 166383-69-3 is a valid CAS Registry Number.

166383-69-3Relevant articles and documents

Inhibitors of HIV protease

-

, (2008/06/13)

Compounds of formula (I): STR1 wherein: R1 is hydrogen, alkyl, aralkyl, --CORa, --CORb, --CSRa, --CSRb, --SO2 Rb, --CONHRb, --CSNHRb, --CONRb Rb or --CSNRb Rb ; R2 is hydrogen or alkyl; R3 is hydrogen, alkylidene, substituted alkyl, or Rb ; R4 is optionally substituted alkyl, cycloalkyl, or aryl; R5 is Rb O--, Rb Rb N--, Rb HN--, aralkyloxycarbonyloxy or aralkyloxycarbonylamino, or R5 is --(CH2)p --D--(CH2)r --, where D is a single bond, carbonyl, oxygen, sulfur, --NH--, --(CH2 =CH2)-- or --NHCO--; and p and r are each 0 or an integer from 1 to 5; A is --(CH2)m --B--(CH2)n -- where B is a single bond, carbonyl, oxygen, sulfur, --NH--, --(CH2 =CH2)-- or --NHCO--; and m and n are each 0 or an integer from 1 to 5; Ra is alkoxy, aralkyloxy, aryloxy or alkoxycarbonyl; Rb is optionally substituted alkyl, cycloalkyl, heterocyclic, aryl or arylalkenyl; and pharmaceutically acceptable salts and esters thereof and pro-drugs therefor, have the ability to inhibit the activity of HIV protease and may thus be used for the treatment and prophylaxis of AIDS.

A straightforward synthesis of (2S,3R)-3-hydroxyproline and trans-(2R,3S)-2-hydroxymethyl-3-hydroxypyrrolidine

Dell'Uomo, Natalina,Di Giovanni, Maria Cristina,Misiti, Domenico,Zappia, Giovanni,Delle Monache, Giuliano

, p. 181 - 188 (2007/10/03)

A stereocontrolled synthesis of (2S,3R)-3-hydroxyproline 1, and trans-(2R,3S)-2-hydroxymethyl-3-hydroxypyrrolidine 2 has been achieved in 21% and 38% yield via the homochiral 4,5-disubstituted oxazolidin-2-one 3. The trans relationship in 2 has been introduced by a modified Mitsunobu reaction.

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