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Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir

Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir structure

CAS No.: 198904-86-8

Chemical Name:: Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir

Synonyms: -2-(4-(pyridin-2-yl);tert-Butyl 2-((2S,3S);Atazanavir Impurity 16;Azanavir EP Impurity J;Atazanavir EP Impurity 4;-2-hydroxy-4-phenylbutyl);Atazanavir Intermediate 4;Azanavir sulfate impurity 1;Atazanavir Sulfate Impurity J;Atazanavir Sulfate EP Impurity J

CBNumber:: CB21565542

Molecular Formula:: C32H42N4O5

Molecular Weight:: 562.7

MDL Number:: MFCD17019309

MOL File:: 198904-86-8.mol

MSDS File:: SDS

Last updated:2026-05-27 23:56:35

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Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir Properties

Melting point	185-186℃
Density	1.157
vapor pressure	0-0Pa at 25℃
storage temp.	Refrigerator
solubility	Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly)
pka	10.05±0.50(Predicted)
form	Solid
color	Off-White to Pale Beige
InChIKey	KYSDBVSJLBOZDZ-NSOVKSMOSA-N
SMILES	N(C(OC(C)(C)C)=O)N(C[C@H](O)[C@@H](NC(OC(C)(C)C)=O)CC1=CC=CC=C1)CC1=CC=C(C2=NC=CC=C2)C=C1
LogP	3.9 at 30℃ and pH6.9
CAS DataBase Reference	198904-86-8
FDA UNII	ZD25TA7YUL

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07,GHS08
Signal word	Warning
Hazard statements	H319-H373
Precautionary statements	P264-P280-P305+P351+P338-P337+P313P-P260-P314-P501
REACH Registrations	Active

Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir price

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
TRC	TRC-D290330-5MG	Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir	198904-86-8	5mg	$167	2026-06-03	Buy
TRC	TRC-D290330-50MG	Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir	198904-86-8	50mg	$1280	2026-06-03	Buy
Usbiological	008492	Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir	198904-86-8	5mg	$418	2026-06-03	Buy
aablocks	AA002BQJ	tert-Butyl 2-((2S,3S)-3-((tert-butoxycarbonyl)amino)-2-hydroxy-4-phenylbutyl)-2-(4-(pyridin-2-yl)benzyl)hydrazinecarboxylate 98+%	198904-86-8	1g	$18	2026-05-28	Buy
aablocks	AA002BQJ	tert-Butyl 2-((2S,3S)-3-((tert-butoxycarbonyl)amino)-2-hydroxy-4-phenylbutyl)-2-(4-(pyridin-2-yl)benzyl)hydrazinecarboxylate 98+%	198904-86-8	5g	$50	2026-05-28	Buy

Product number	Packaging	Price	Buy
TRC-D290330-5MG	5mg	$167	Buy
TRC-D290330-50MG	50mg	$1280	Buy
008492	5mg	$418	Buy
AA002BQJ	1g	$18	Buy
AA002BQJ	5g	$50	Buy

Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir Chemical Properties, Uses, Production

Chemical Properties

White Solid

Uses

An intermediate for the synthesis of Atazanavir and the preparation of some peptide analogs

Uses

Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir is an intermediate for the synthesis of Atazanavir (A790051) and the preparation of some peptide analogs.

Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir synthesis

Synthesis of Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir from (2R,3S)-3-(tert-Butoxycarbonyl)amino-1,2-epoxy-4-phenylbutane and tert-Butyl 2-(4-(pyridin-2-yl)benzyl)hydrazinecarboxylate

Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir Preparation Products And Raw materials

Raw materials

Carbamic acid, [(1S,2S)-3-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-2-[(methylsulfonyl)oxy]-1-(phenylmethyl)propyl]-, 1,1-dimethylethyl ester (9CI) tert-Butyl [(1S,2S)-1-benzyl-2,3-dihydroxypropyl]carbamate 198905-10-1 198905-08-7 (2R,3S)-3-(tert-Butoxycarbonyl)amino-1,2-epoxy-4-phenylbutane

tert-Butyl 2-(4-(pyridin-2-yl)benzyl)hydrazinecarboxylate tert-Butyl [[4-(2-pyridinyl)phenyl]methylene]hydrazinecarboxylate N-Boc-L-phenylalaninal Hydrazinecarboxylic acid, [[4-(2-pyridinyl)phenyl]methylene]-, 1,1-dimethylethyl ester 4-(2-Pyridinyl)benzaldehyde

4-Bromobenzaldehyde dimethyl acetal 2-Bromopyridine 4-Formylphenylboronic acid tert-Butyl carbazate

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Preparation Products

Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir Suppliers

Global Suppliers ( 134)

Supplier	Tel	Email	Country	ProdList	Advantage
Aurisco Pharmaceutical (Tianjin) Inc.	022-59885855		China	96	58
J & K SCIENTIFIC LTD.	18210857532 18210857532	jkinfo@jkchemical.com	China	96815	76
Chembest Research Laboratories Limited	021-20908456	sales@BioChemBest.com	China	5996	61
Adamas Reagent, Ltd.	400-6009262 15618770481	yhx@titansci.com	China	14098	59
Chemsky（shanghai）International Co.,Ltd.	021-50135380	shchemsky@sina.com	China	32273	50
Daicel Chiral Technologies (China)CO.,LTD	021-50460086-9 15921403865	han_yajun@dctc.daicel.com	China	7915	65
Nanjing Vital Chemical Co., Ltd.	Please Send Email 18652950785	chemweiao@163.com	China	4368	65
Guangzhou Isun Pharmaceutical Co., Ltd	020-39119399 18927568969	isunpharm@qq.com	China	4773	55
Shanghai Twisun Bio-pharm Co.,Ltd	+86-21-33282107		China	107	60
Bide Pharmatech Ltd.	400-164-7117 18317119277	product02@bidepharm.com	China	40000	60

Supplier	Advantage
Aurisco Pharmaceutical (Tianjin) Inc.	58
J & K SCIENTIFIC LTD.	76
Chembest Research Laboratories Limited	61
Adamas Reagent, Ltd.	59
Chemsky（shanghai）International Co.,Ltd.	50
Daicel Chiral Technologies (China)CO.,LTD	65
Nanjing Vital Chemical Co., Ltd.	65
Guangzhou Isun Pharmaceutical Co., Ltd	55
Shanghai Twisun Bio-pharm Co.,Ltd	60
Bide Pharmatech Ltd.	60

View Latest Price from Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-09-02	Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir 198904-86-8	$5.00	1KG	99%		Henan Fengda Chemical Co., Ltd
2026-08-20	Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir 198904-86-8	$1.10	1g	99.00%	100 Tons Min	Dideu Industries Group Limited
2025-12-16	Atazanavir EP Impurity J 198904-86-8		10mg	98	10000000	Moxin Chemicals

Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir
198904-86-8
$5.00
99%
Henan Fengda Chemical Co., Ltd

Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir
198904-86-8
$1.10
99.00%
Dideu Industries Group Limited

Atazanavir EP Impurity J
198904-86-8
98
Moxin Chemicals

198904-86-8 (Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir) Related Search:

(3R,8S,9S,12R)-Atazanavir Atazanavir Atazanavir S,S,R,S-Diastereomer Atazanavir Impurity 14 Atazanavir Impurity 6

Atazanavir sulfate Atazanavir IMpurity 4 Atazanavir Sulfate Atazanavir Impurity 8 Des-N-(methoxycarbonyl)-L-tert-leucine Atazanavir Trihydrochloride tert-Butyl 2-(4-(pyridin-2-yl)benzyl)hydrazinecarboxylate

Atazanavir D6 (3S,8R,9S,12S)-3,12-Bis(1,1-diMethylethyl)-8-hydroxy-4,11-dioxo-9-(phenylMethyl)-6-[[4-(2-pyridinyl)phenyl]Methyl]-,2,5,6,10,13-pentaazatetradecanedioic Acid 1,14-DiMethyl Ester Des(benzylpyridyl) Atazanavir Atazanavir IMpurity 3 Atazanavir Impurity

(2R,3S)-3-(tert-Butoxycarbonyl)amino-1,2-epoxy-4-phenylbutane 4-(2-Pyridinyl)benzaldehyde Methoxycarbonyl-L-tert-leucine

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2-[(2S,3S)-3-[[(1,1-Dimethylethoxy)carbonyl]amino]-2-hydroxy-4-phenylbutyl] -2-[[4-(2-pyridinyl)phenyl]methyl]hydrazinecarboxylic Acid 1,1-Dimethylethyl Ester Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir dimethylethoxy)carbonyl]amino]-2-hydroxy-4- Hydrazinecarboxylic acid, 2-[(2S,3S)-3-[[(1,1- phenylbutyl]-2-[[4-(2-pyridinyl)phenyl]methyl]-,1,1-dimethylethyl ester Hydrazinecarboxylic acid, 2-[(2S,3S)-3-[[(1,1-dimethylethoxy)carbonyl]amino]-2-hydroxy-4-phenylbutyl]-2-[[4-(2-pyridinyl)phenyl]methyl]-, 1,1-dimethylethyl ester 1-[4-(Pyridin-2-yl)phenyl]-5(S)-2,5-bis[(tert-butyloxycarbonyl)-amino]-4(S)-hydroxyl-6-phenyl-2-azahexane 2-[(2S,3S)-3-[[(1,1-dimethylethoxy)carbonyl]amino]-2-hydroxy-4-phenylbutyl]-2-[[4-(2-pyridi 2-[(2S,3S)-3-[[(1,1-Dimethylethoxy)carbonyl]amino]-2-hydroxy-4-phenylbutyl]-2-[[4-(2-pyridinyl)phenyl]methyl]hydrazinecarboxylic acid tert-butyl ester Tert-butyl 2-{(2S,3S)-3-[(tert-butoxycarbonyl)aMino]-2-hydroxy-4-phenylbutyl}-2-[4-(2-pyridinyl)benzyl]hydrazinecarboxylate 1-(4-(pyridin-2-yl)phenyl)-5(S)-2,5-bis((tert-butyloxy-carbonyl) AtazanavirSulfateInterMediates-01 tert-Butyl 2-((2S,3S)-3-((tert-butoxycarbonyl)amino)-2-hydroxy-4-phenylbutyl)-2-(4-(pyridin-2-yl)benzyl)hydrazinecarboxylate Atazanavir Impurity 16 Atazanavir EP Impurity J (Atazanavir Di-tert-butyl Analog) 2-[(2S,3S)-3-[[(1,1-Dimethylethoxy)carbonyl]amino]-2-hydroxy-4-phenylbutyl]-2- 1-[4-(Pyridin-2Yl)Phenyl]-5(S)-2,5-Bis[Tert-Butyloxycarbonyl)Amino]-4(S)-Hydroxyl-6-Phenyl-2-Azhexane -2-(4-(pyridin-2-yl) -2-hydroxy-4-phenylbutyl) tert-Butyl 2-((2S,3S) 2-[(2S,3S)-3-[[(1,1-Dimethylethoxy)carbonyl]amino]-2-hydroxy-4-phenylbutyl] -2-[[4-(2-pyridiny 1-[4-(pyridin-2-yl)phenyl]-5(S)-2,5-bis[(tert-butyloxycarbonyl)amino]-4(S)-hydroxy-6-phenyl-2-azahexane tert-Butyl 2-[(2S,3S)-3-(tert-butoxyformamido)-2-hydroxy-4-phenylbutyl]-2-[[4-(pyridin-2-yl)phenyl]methyl]hydrazine-1-carboxylate Des-N-(methoxycarbonyl)-L-tert-leucine Bis-Boc Atazanavir ISO 9001：2015 REACH tert-Butyl 2-[(2S,3S)-3-[(tert-butoxycarbonyl)amino]-2-hydroxy-4-phenylbutyl]-2-[[4-(pyridin-2- yl)phenyl]methyl]hydrazine-1-carboxylate 2-[(2S,3S)-3-[[(1,1-Dimethylethoxy)carbonyl]amino]-2-hydroxy-4-phenyl-butyl]-2-[[4-(2-pyridinyl)phenyl]methyl]hydrazinecarboxyli Atazanavir Intermediate 4 Atazanavir Sulfate Impurity J Atazanavir Sulfate EP Impurity J tert-Butyl 2-((2S,3S)-3-((tert-butoxycarbonyl)amino)-2-hydroxy-4-phenylbutyl)-2-(4-(pyridin-2-yl)benzyl)hydrazinecarboxylate (Atazanavir Impurity) 1-[4-(Pyridin-2-yl)phenyl]-5-(s)-2,5-bis[(tert-butylox ycarbonyl)-amino]-4(s)-hydroxyl-6-phenyl-2-azahex Azanavir sulfate impurity 1 Azanavir EP Impurity J tert-Butyl N-[(1S,2S)-1-Benzyl-3-[(tert-butoxycarbonylamino)-[[4-(2-pyridyl)phenyl]methyl]amino]-2-h 1-[4-(Pyridin-2-yl)phenyl]-5(S)-2,5-bis[(tert-butoxycarbonyl)amino]-4(S)-hydroxy-6-phenyl-2-azahexane Atazanavir EP Impurity 4 tert-Butyl N-[(1S,2S)-1-Benzyl-3-[(tert-butoxycarbonylamino)-[[4-(2-pyridyl)phenyl]methyl]amino]-2-hydroxy-propyl]carbamate 2-[(2S,3S)-3-[[(tertbutyloxy)carbonyl]amino]-2-hydroxy-4-phenylbutyl]-2-[[4-(2-pyridyl)phenyl]methyl]hydrazinecarboxylic acidtertbutyl ester 198904-86-8 98904-86-8 C32H42N4O5 Aromatics Compounds Aromatics Chiral Reagents Heterocycles